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1990年〜1999年
- H. Yoshizawa, S. Mitsuda, H. Mri, Y. Yamada, T. Kobayashi, H. Sawa and J. Akimitsu,
Copper Spin Correlations in a Two-Dimensional Antiferromagnet Pr2CuO4-δ, J. Phys. Soc.
Jpn. 59(2) (1990) 428-431.
- S. Sugai, T. Kobayashi and J. Akimitsu, Magnon and Phonon Raman Scattering in Pr2CuO4,
Solid State Commun. 74(7) (1990) 599-601.
- A. Yamazaki, J. Akimitsu, H. Miyatake, S. Okuma and N. Nishida, Observation of an
Antiferromagnetic Phase in the Bi2Sr2CuO6+y System by the μ+SR Technique, J. Phys. Soc.
Jpn. 59(6) (1990) 1921-1924.
- S. Katano, N. M?i, H. Takahashi, T. Kobayashi and J. Akimitsu, Pressure Effects on the
Antiferromagnetic Ordering in Pr2CuO4-y, J. Phys. Soc. Jpn. 59(6) (1990) 1928–1931.
- J. Akimitsu and H. Sawa, New High-Tc Copper Oxide Superconductors: (Nd,Ce,Sr)2CuO4-z and (Ln,Ce,Ba)4Cu3O9-z (Ln: Nd, Sm, Eu and Gd), Mechanism of Superconductivity (1990)
6-13.
- S. Sugai, M. Sato, T. Kobayashi, J. Akimitsu, T. Ito, H. Takagi, S. Uchida, S. Hosoya, T.
Kajitani and T. Fukuda, High Energy Spin Excitations in the Insulating Phases of High-Tc Superconducting Cuprates and La2NiO4, Phys. Rev. B 42(1) (1990) 1045-1047.
- S. Sugai, M. Sato, T. Ito, T. Ido, H. Takagi, S. Uchida, T. Kobayasi, J. Akimitsu, Y.
Hidaka, T. Murakami, S. Hosoya, T. Kajitani and T. Fukuda, Spins and Carriers in Oxide
Superconductors Studied by Raman Scattering, Physica B 165 & 166 (1990) 1263-1264.
- T. Ekino and J. Akimitsu, Superconducting Energy Gap in Spinel Compound Li1+xTi2-xO4 from Electron Tunneling, Physica B 165 & 166 (1990) 1599-1600.
- 澤博, 秋光純, 新超伝導物質の設計, 日本金属学会会報 29(9) (1990) 678-683.
- H. Kito, H. Sawa, J. Akimitsu, F. Izumi, T. Ishigaki and H. Asano, Nonstoichiometry
and Mixed Pr Valency in (Pr1-xSrx)(Pr1-yCey)CuO4-z, Jpn. J. Appl. Phys. 29(10) (1990)
L1803-L1806.
- T. Ekino and J. Akimitsu, Electron-Tunneling Studies on the Superconducting
(La1-xSrx)2CuO4 and YBa2Cu3Oy Systems, Phys. Rev. B 42(13A) (1990) 8049-8056.
- J. Iida, M. Tanaka, H. Kito and J. Akimitsu, Succesive Phase Transitions in Nearly
Stoichiometric ErFe2O4, J. Phys. Soc. Jpn. 59(11) (1990) 4190-4191.
- T. Ekino and J. Akimitsu, Tunneling Spectroscopy on High-Tc Superconductors, Studies of
High Temperature Superconductors (Edited by A.Narlikar), 9 (1990) 259-309.
- 国分道雄, 秋光純, 新しい銅酸化物超伝導体の設計, 粉体粉末 38(2) (1991) 195-198.
- 秋光純, 新超伝導物質の設計, 応用物理学会誌 60(5) (1991) 466-469.
- J. Akimitsu and M. Kokubun, Design of High-Tc Oxide Superconductors, The 2nd ISSP
International Symposium on Physics and Chemistry of Oxide Superconductors (PCOS 91)
(1991) 17.: (Springer-Verlag)
- J. Akimitsu, J. Amano, H. Sawa, O. Nagase, K. Gyoda amd M. Kogai, A New Non-Cu-Oxide
Superconductor (Sr1-xLnx)Nb2O6-y (Ln: La, Nd, Pr and Ce), Jpn. J. Appl. Phys. 30(7A)
(1991) L1155-L1156.
- S. Funahashi, H. Kito, J. Akimitsu, J. Iida, M. Tanaka and K. Siratori, Neutron Diffraction
of Two-Dimensional Triangular Lattice of ErFe2O4, Physica B 174 (1991) 74-76.
- T. Ekino and J. Akimitsu, Observations of Superconducting Tunnel Conductance Structures
in YBa2Cu3O7-y Tunnel Junctions, Mechanism of Superconductivity (1991) 294-297.
- J. Akimitsu, J. Amano, H. Sawa and Y. Matsui, Superconductivity in (Sr1-xLnx)Nb2O6-y (Ln: La, Nd, Pr, Ce, Gd and Ho), Mechanism of Superconductivity (1991) 11-16.
- J. Akimitsu, J. Amano, K. Tomimoto, T. Suzuki, M. Kogai, Y. Fukawa, H. Sawa and Y.
Matsui, Superconductivity in Sr(Ln)-Nb-O System (Ln; La, Nd, Pr, Ce, Gd and Ho), Physica
C 185-189 (1991) 723-724.
- J. Kikuchi, S. Kambe, H. Yasuoka, Y. Ueda, K. Tomimoto and J. Akimitsu, 51V Knight Shift
and Quadrupole Interaction in the Low-Temperature Phase of LiVO2, J. Phys. Soc. Jpn. 60(11) (1991) 3620-3624.
- H. Nakane, T. Watanabe, H. Kojima, J. Akimitsu and S. Yoshizawa, Measurement of Very
Low Resistivity for a Rod-Shaped Superconductor, Physica C 185-189 (1991) 1329-1330.
- K. Tajima, J. Akimitsu, M. Akimitsu, L. Rebelsky, G.Grbel and G. Shirane, The Time
Evolution of the First-Order Magnetic Phase Transition in Dy-4%Y Alloy, J. Mag. Mag. Mat. 104-107 (1992) 177-178.
- Y. Kimishima, M. Tsuchiya, K. Tomimoto and J. Akimitsu, Phase Transition in LiVO2, J.
Mag. Mag. Mat. 104-107 (1992) 779-780.
- J. Akimitsu, New Material Design of Cu-Oxide Superconductors, JJAP Sereis 7 Mechanisim
of Superconductivity (1992) 20-22.
- T. Ekino and J. Akimitsu, Tunneling Spectroscopy of Copper-Oxide Superconductors, JJAP
Series 7 Mechanism of Superconductivity (1992) 260-271.
- 秋光純, 富本晃吉, 新超伝導体探索研究の現状と展望, 日本結晶学会誌 34(5) (1992) 273-282.
- H. Kito, J. Akimitsu, S. Funahashi, J. Iida, M. Tanaka and K. Siratori, Succesive Phase
Transitions in Two -Dimensional Antiferromagnet ErFe2O4-δ, The 6th Int. Conf. on Ferrite
(1992) 707-710.
- J. Akimitsu, M. Uehara, M. Ogawa, H. Nakata, K. Tomimoto, Y. Miyazaki, H. Yamane,
T. Hirai, K. Kinoshita and Y. Matsui, Superconductivity in the New Compound
(Y1-xCax)0.95Sr2.05Cu2.4 (CO3)0.6Oy, Physica C 201 (1992) 320-324.
- Y. Miyazaki, H. Yamane, N. Kobayashi, T. Hirai, H. Nakata, K. Tomimoto and J. Akimitsu,
(C0.35Cu0.65) Sr2(Y0.73Ce0.27)2Cu2Ox: a New Superconductor Containing CO3, Physica C 202 (1992) 162-166.
- 秋光純, 超伝導物質探索の話, 高校通信 309 (1992) 1-8.
- T. Ekino and J. Akimitsu, Tunneling Spectroscopy of Copper Oxide Superconductors,
Superconductivity (Frontiers in Physics) World Scientific (1992) 477-525.
- J. Akimitsu, High-Tc Superconductors Based on the New Material Design, Phase Transitions 41 (1993) 13-19.
- T. Den, T. Kobayashi and J. Akimitsu, Superconductor with Tc up to 80 K in the Compound
(Ln,Ca)(Sr,Ba)2(C,Cu)Cu2O7-δ, Physica C 208 (1993) 351-355.
- A. Yoshida, H. Tamura, K. Gotoh, T. Imamura, S. Hasuo and J. Akimitsu, Selective Plasma
Oxidation of Oxygen-Deficient YBa2Cu3O7-x, J. Appl. Phys. 73(11) (1993) 7549-7555.
- H. Takahashi, N. M?i, Y. Nagata, S. Nakamura, T. Uchida, J. Akimitsu and Y. Tokura,
High Pressure Study on the Superconducting Transition Temperature and Hall Coefficient of
Ba1-xKxBiO3 up to 8 GPa, Physica C 210 (1993) 485-488.
- S. Imagawa, H. Ohta, M. Motokawa, O. Fujita and J. Akimitsu, High Field ESR of Spin-Peierls
System CuGeO3, Physica B 201 (1994) 178-181.
- M. Uehara, H. Nakata, J. Akimitsu, T. Den, T. Kobayashi and Y. Matsui, Superconductivities
in the (Bi,Pb)-Oxycarbonate System, Physica C 213 (1993) 51-56.
- 松井良夫, 秋光純, 炭酸塩超伝導体の高分解能電顕観察, NSMF NEWS 39 (1993) 6-11.
- S. Katano, R. M. Nicklow, S. Funahashi, N. M?i, T. Kobayashi and J. Akimitsu, Pressure
Induced Successive Magnetic Phase Transitions in Pr2CuO4-y, Physica C 215 (1993) 92-96.
- S. Noma, T. Saito, T. Ekino, J. Akimitsu and S. Sueno, Superconducting Phase in
Nb1-xTaxSe3 (0.135< x < 0.16), Phys. Rev. B 48(13) (1993) 9620-9627.
- M. Uehara, H. Nakata and J. Akimitsu, Superconductivity in the New Compound
Sr2CuO2(CO3)1-x(BO3)x, Physica C 216 (1993) 453-457.
- M. Udagawa, Y. Nagaoka, N. Ogita, M. Masada, J. Akimitsu and K. Ohbayashi, Infrared
Absorption and Raman Study of R2CuO4, Advances in Superconductivity IV (1993) 175-178.
- T. Ekino, M. Kosugi, J. Akimitsu and Y. Nagata, Tunneling Measurements of
Superconducting Energy Gap and Electron-Phonon Interaction in Ba1-xKxBiO3, Advances
in Superconductivity VI (1993).: The 6th International Symposium on Superconductibity
(ISS’93)
- Y. Matsui, M. Ogawa, M. Uehara, H. Nakata
and J. Akimitsu, Incommensurate and Commensurate Superstructures in the Oxycarbonate
Superconductor TlSr4-xBaxCu2(CO3)Oy (x ≈ 2), Physica C 217 (1993) 287-293.
- T. Ekino, T. Den and J. Akimitsu, Superconducting energy gaps in Bi2Sr2CuO6+y and
Bi2Sr2-xNdxCuO6+y, Physica C 218 (1993) 387-395.
- J. Akimitsu, H. Nakata, M. Uehara and Y. Matsui, New Copper Oxycarbonate
Superconductors, ICMAS-93 Superconducting Materials (1993) 21-26.: edited by J.
Etourneau, J. B. Torrance and H.Yamauchi.
- M. Udagawa, Y. Nagaoka, N. Ogita, M. Masada, J. Akimitsu and K. Ohbayashi, Raman
Scattering Study of R2CuO4 (R = Pr, Nd, Sm and Gd), Phys. Rev. B, 49(1) (1994) 585-588.
- M. Kikuchi, E. Ohshima, N. Ohnishi, Y. Muraoka, S. Nakajima, E. Aoyagi, M. Ogawa,
J. Akimitsu, T. Oku, K. Hiraga and Y. Syono, Synthesis and Superconductivity of
Oxycarbonates of the Tl-1201 Phase, Physica C 219 (1994) 200-204.
- H. Kito, J. Akimitsu, F. Izumi, T. Kamiyama and H. Asano, Structure Refinements of
Orthorhombic (La1-xCax)2CuO4 (x = 0.05), J. Phys. Soc. Jpn 63(2) (1994) 695-699.
- J. Akimitsu, J. Amano, M. Yoshinari, M. Kokubun, T. Iwasaki, S. Okuma, N. Nishida,
K. Nishiyama and N. Mori, Magnetic Phase Transitons in (Pr2-xCex)CuO4-δ, Hyperfine
Interaction 85 (1994) 187-192.
- M. Udagawa, Y. Nagaoka, T. Johkou, N. Ogita, M. Masada, J. Akimitsu and K. Ohbayashi,
Infrared Absorption of Nd2-xCexCuO4 and R2CuO4 (R = Pr, Nd, Sm, and Gd), Physica B 194–196 (1994) 433-434.
- T. Ekino and J. Akimitsu, CDW Tunneling Density of States in NbSe3, Physica B 194-196 (1994) 1221-1222.
- J. Akimitsu, T. Ekino, T. Saito, S. Noma and S. Sueno, Superconductivity in Nb1-xTaxSe3 (0.14< x <0.16), Physica B 194-196 (1994) 2077-2078.
- J. Akimitsu, H. Nakata and M. Uehara, A New Family of Superconductors Containing
Carbonate Group, Journal of Superconductivity 7(1) (1994) 19-22.
- M. Uehara, S. Sahoda, H. Nakata, J. Akimitsu and Y. Matsui, New Hg-Based Oxycarbonate
Superconductor HgBa2Sr2CuO6+δ(CO3), Physica C 222 (1994) 27-32.
- T. Ekino and J. Akimitsu, Phonon Structures in Tunneling Conductance of Superconducting
YBa2Cu3O7, Journal of Superconductivity 7(2) (1994) 367-369.
- M. Udagawa, Y. Nagaoka, N. Ogita, M. Masada, J. Akimitsu and K. Ohbayashi, Phonon
Raman Scattering of R2CuO4 (R = Pr, Nd, Sm and Gd), Journal of Superconductivity 7(2)
(1994) 449-451.
- 中田 寿穂, 上原 政智, 秋光 純, 炭酸塩超伝導体の合成と物性, 日本結晶学会誌 36(4) (1994)
283-293.
- M. Arai, M. Fujita, K. Ubukata, T. Bokui, K. Tabata, H. Ohta, M. Motokawa, T. Otomo, K.
Ohyama, M. Mino, J. Akimitsu and O. Fujita, Neutron Scattering Studies on a Spin-Peierls
Material CuGeO3, J. Phys. Soc. Jpn. 63(5) (1994) 1661-1665.
- H. Nakata, M. Uehara, J. Akimitsu and Y. Matsui, A New Family of Superconductors
Containing Carbonate Group, Bulletin of the Electrotrechnical Laboratory 58(6) (1994)
468-472.
- M. Nishi, O. Fujita and J. Akimitsu, Neutron Scattering Study on the Spin-Peierls Transition
in a Quasi One-Dimensional Magnet CuGeO3, Phys. Rev. B 50(9) (1994) 6508-6510.
- O. Kamimura, M. Terauchi, M. Tanaka, O. Fujita and J. Akimitsu, Electron Diffraction Study
of an Inorganic Spin-Peierls System CuGeO3, J. Phys. Soc. Jpn. 63(7) (1994) 2467-2471.
- H. Ohta, S. Imagawa, H. Ushiroyama, M. Motokawa, O. Fujita and J. Akimitsu, Electron
Spin Resonance of Spin-Peierls Material CuGeO3, J. Phys. Soc. Jpn. 63(8) (1994) 2870-2873.
- M. Uehara, M. Uoshima, S. Ishiyama, H. Nakata, J. Akimitsu, Y. Matsui, T. Arima, Y. Tokura
and N. M?i, A New Homologous Series of Oxycarbonate Superconductors
Sr2(Ca,Sr)n-1Cun(CO3)1-x(BO3)xOy (n = 1, 2 and 3), Physica C 229 (1994) 310-314.
- M. Kosugi, J. Akimitsu, T. Uchida, M. Furuya, Y. Nagata and T. Ekino, Tunneling studies
on Ba1-xKxBiO3 Single Crystals with Tc = 15~30 K, Physica C 229 (1994) 389-395.
- H. Namatame, A. Fujimori, H. Torii, T. Uchida, Y. Nagata and J. Akimitsu, Effects of Hole
Doping and Electron-Phonon Interaction on the Electronic Structure of Ba1-xKxBiO3 Studied
by Photoemission Spectroscopy, Phys. Rev. B 50(18) (1994) 13674-13678.
- M. Udagawa, H. Aoki, N. Ogita, O. Fujita, A. Sohma, A. Ogihara and J. Akimitsu, Raman
Scattering of CuGeO3, J. Phys. Soc. Jpn. 63(11) (1994) 4060-4064.
- 上原政智, 秋光純, 高温超伝導体物質開発における最近の進展, 表面技術 45(11) (1994) 1084-1089.
- N. Ikeda, K. Saito, K. Kohn, H. Kito, J. Akimitsu and K. Siratori, Possibility of
Magnetoelectric Effect in Antiferromagnetic RFe2O4, Ferroelectrics 161 (1994) 111-115.
- N. Ikeda, K. Kohn, H. Kito, J. Akimitsu and K. Siratori, Dielectric Relaxation and Hopping
of Electrons in ErFe2O4, J. Phys. Soc. Jpn. 63 (1994) 4556-4564.
- T. Ekino, T. Minami, H. Fujii and J. Akimitsu, Superconducting Energy Gaps in YBa2Cu3O7 and Bi2Sr2CaCu2O8, Physica C 235-240 (1994) 1899-1900.
- T. Ekino, H. Fujii, M. Kosugi,Y. Zenitani and J. Akimitsu, Superconducting Energy Gap in
YNi2B2C, Physica C 235-240 (1994) 2529-2530.
- T. Noda, M. Ogawa, J. Akimitsu, M. Kikuchi, E. Ohshima and Y. Syono, Synthesis
of Oxycarbonate Solid Solutions (Tl1-xHgx)Sr2Ba2Cu2(CO3)Oy (x = 0~1.0) and
Superconductivity, Physica C 242 (1995) 12-16.
- H. Kito, M. Nishi, S. Katano, J. Akimitsu, S. Funahashi and K. Siratori, Interlayer Spin
Correlation in a 2-D Triangular Ferrimagnet ErFe2O4, J. Mag. Mag. 140-144 (1995)
1647-1648.
- M. Arai, M. Fujita, K. Ubukata, H. Ohta, M. Motokawa, T. Otomo, K. Ohyama, M. Mino,
J. Akimitsu and O. Fujita, Structural Evolution of Spin-Peierls Material CuGeO3 Studied by
Neutron Scattering, J. Mag. Mag. 140-144 (1995) 1689-1690.
- H. Ohta, S. Imagawa, Y. Yamamoto, M. Motokawa, O. Fujita and J. Akimitsu, ESR Study
of High and Low Field Phases of Spin-Peierls System CuGeO3, J. Mag. Mag. 140-144 (1995)
1685-1686.
- O. Fujita, J. Akimitsu, M. Nishi and K. Kakurai, Evidence for a Singlet-Triplet Transition in
Spin-Peierls System CuGeO3, Phys. Rev. Lett. 74(9) (1995) 1677-1680.
- H. Ohta, Y. Yamamoto, S. Imagawa, T. Nanba, K. Watanabe, M. Arai, M. Motokawa, O.
Fujita and J. Akimitsu, Submillmeter Wave ESR and Far Infrared Spectroscopy Measurements
of CuGeO3, International Journal of Infrared and Millimeter Wave 16(3) (1995) 501-512.
- M. Nishi, O. Fujita and J. Akimitsu, Inelastic Neutron Scattering Study of the Lattice
Dynamics in CuGeO3, Physica B 210 (1995) 149-156.
- N. Ikeda, K. Kohn, H. Kito, J. Akimitsu and K. Siratori, Anisotropy of Dielectric Dispersion
in ErFe2O4 Single Crystal, J. Phys. Soc. Jpn. 64(4) (1995) 1371-1377.
- Y. Zenitani, K. Inari, S. Sahoda, M. Uehara, J. Akimitsu, N. Kubota and M. Ayabe,
Superconductivity in (Ca,Na)2CaCu2O4Cl2 -the New Simplest Double-Layer Cuprate with
Apical Chlorine-, Physica C 248 (1995) 167-170.
- H. Kito, S. Ishida, M. Suzuki, J. Akimitsu, S. Takekawa and K. Siratori, Ultrasonic
Investigation of a Two-Dimensional Triangluar Lattice Ferrimagnet, ErFe2O4-δ Single
Crystal, J. Phys. Soc. Jpn. 64(6) (1995) 2147-2151.
- J. Akimitsu, M. Uoshima, S. Ishiyama, M. Sato, H. Nakata, M. Uehara, Y. Matsui, T. Arima,
Y. Tokura and N. Mri, New Oxycarbonate Superconductors Sr2(Ca,Sr)n-1Cun(CO3)Oy (n = 1, 2, 3) and Ba2Can-1Cu2(CO3)Oy (n = 3), Superconductivity and Superconducting
Materials Technologies 8 (1995) 35-40.: Edited by P. Vincenzini, Advances in Science and
Technology
- H. Takahashi, N. M?i, O. Fujita, J. Akimitsu and T. Matsumoto, Effect of Pressure on the
Magnetic Susceptibity in Spin-Peierls Cuprate, CuGeO3, Solid State Commun. 95(12) (1995)
817-822.
- K. Yamada, N. Suzuki and J. Akimitsu, Magnetic Properties of (Sr,Ba)2Cu3O4Cl2:
Two-Dimensional Antiferromagnetic Cuprates Containing Two Types of Cu-site, Physica B 213 & 214 (1995) 191-193.
- H. Kito, J. Akimitsu, M. Nishi, S. Katano, S. Funahashi and K. Siratori, Interlayer Correlation
of Fe Spins and Charges in the 2-D Triangular Ferrimagnet ErFe2O4, Physica B 213&214 (1995) 215-217.
- M. Nishi, O. Fujita, J. Akimitsu, K. Kakurai and Y. Fujii, Magnetic Excitatinons in CuGeO3,
Physica B 213&214 (1995) 275-277.
- O. Fujita, M. Nishi, J. Akimitsu, H. Okumura, K. Kakurai and Y. Fujii, Characterization
of the Spin-Peierls Gap in CuGeO3 by Means of Inelastic Neutron Scattering, Physica B 213&214 (1995) 281-283.
- M. Fujita, M. Arai, K. Ubukata, H. Ohta, M. Mino, M. Motokawa, K. Knight, R. Ibberson,
J. B. Forsyth, S. M. Bennington, J. Akimitsu and O. Fujita, The Lattice Evolution of the
Spin-Peierls Material CuGeO3 Studied by Neutron Scattering, Physica B 213&214 (1995)
288-290.
- Y. Matsui and J. Akimitsu, Direct Observations of Arrangements of Carbonate Groups
in Oxycarbonate Superconductors by High-Resolution Electron Microscopy, Microscopy
Research and Technique 30 (1995) 155-166.
- S. Katano, H. Kito, J. Akimitsu, K. Siratori, S. Funahashi and H. R. Child, Two-Dimensinal
Diffraction Patterns of ErFe2O4-δ, Physica B 213 & 214 (1995) 212-214.
- A. Sohma, H. Okajima, T. Yokoo, A. Yamashita, J. Akimitsu, K. Nishiyama and K. Nagamine, μSR Studies on Spin-Peierls System Cu1-xZnxGeO3 (x = 0, 0.01, 0.03 and 0.07), J. Phys.
Soc. Jpn. 64(8) (1995) 3060-3065.
- M. Nishi, O. Fujita, J. Akimitsu, K. Kakurai and Y. Fujii, High Pressure Effects on the
Spin-Peierls Compound CuGeO3, Phys. Rev. B 52(10) (1995) R6959-R6962.
- T. Yokoo, T. Sakaguchi, K. Kakurai and J. Akimitsu, Observation of the Haldane Gap in
Y2BaNiO5 Single Crystal, J. Phys. Soc. Jpn. 64(10) (1995) 3651-3655.
- T. Mizokawa, A. Fujimori, T. Arima, Y. Tokura, N. Mri and J. Akimitsu, Electronic
Structure of PrNiO3 Studied by Photoemission and X-Ray Absorption Spectroscopy, Phys.
Rev. B 52(19) (1995) 13865-13873.
- S. Katano, O. Fujita, J. Akimitsu and M. Nishi, Pressure Effects on the Dimerization in the
Spin-Peierls State of CuGeO3, Phys. Rev. B 52(21) (1995) 15364-15367.
- H. Nakata, J. Akimitsu, S. Katano, T. Minami, N. Ogita and M. Udagawa, Structural Phase
Transition of Sr2CuO2(CO3), Physica C 255 (1995) 157-166.
- M. Uehara, M. Ogawa and J. Akimitsu, Metal-Insulator Transition in the S = 1/2 Spin Ladder
System (Sr0.4Ca0.6)14Cu24-xCoxO41-δ, Physica C 255 (1995) 193-203.
- Y. Matsui, T. Kawashima, E. Takayama-Muromachi and J. Akimitsu, Structures of
Oxycarbonate Superconductors Examined by High-Resolusion Transmission Electron
Microscopy, Studies of High Temperature Superconductors 15 (1995) 145-165.
- 中田寿穂, 秋光純, 炭酸基を含む超伝導, ISTEC ジャーナル 8(2) (1995) 57-61.
- T. Ekino, H. Fujii, M. Kosugi, Y. Zenitani and J. Akimitsu, Tunneling Spectroscopy of
Superconducting Energy Gap in RNi2B2C ( R = Y and Lu), Phys. Rev. B 53(9) (1996)
5640-5649.
- 上原政智, 秋光純, 梯子型構造を有する銅酸化物へのキャリアドーピング, 応用物理学会誌 65 巻 (4) (1996) 394-400.
- I. Yamada, M. Nishi and J. Akimitsu, Electron Paramagnetic Resonance Governed by the
Dzyaloshinsky-Moriya Antisymmetric Exchange Interaction in CuGeO3, J. Phys.:Condensed
Matt. 8 (1996) 2625-2640.
- N. Ogita, M. Udagawa, T. Yokoo, O. Fujita and J. Akimitsu, Raman Scattering of CuGeO3 and Y2BaNiO5, Czechoslovak Joural of Phys. 46 (1996) 1975-1976.
- J. Akimitsu, M. Uehara, T. Nagata, S. Matsumoto, Y. Kitaoka, H. Takahashi and N. M?i,
Metal-Insulator Transition in the S=1/2 Spin-Ladder System (Sr0.4Ca0.6)14Cu24-xCoxO41-δ,
Phisica C 263 (1996) 475-481.
- H. Nakata, H. Okajima, T. Yokoo, A. Yamashita and J. Akimitsu, The Phase Diagram of the
New Superconductor Sr2CuO2(CO3)1-x(BO3)x, Physica C 263 (1996) 344-348.
- M. C. Martin, G. Shirane, Y. Fujii, M. Nishi, O. Fujita, J. Akimitsu, M. Hase and K.
Uchinokura, Temperature Dependence of the Spin-Peierls Energy Gap and Anomalous Line
Shapes in CuGeO3, Phys. Rev. B 53(22) (1996) R14713-R14716.
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the Soft-Mode Spin Wave at the Spin-Flop Transition as Observed in MnTiO3 Using Inelastic
Polarized Neutron Scattering, J. Phys. Condens. Matter 8 (1996) 5905-5914.
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of CuGeO3, Physica B 219 & 220 (1996) 107-109.
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Excitations in the Spin S=1 One-Dimensional Heisernberg Antiferromagnet Y2BaNiO5, J.
Phys. Soc. Jpn. 65(9) (1996) 3025-3031.
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Superconductivity in the Ladder System Sr0.4Ca13.6Cu24O41.84, J. Phys. Soc. Jpn. 65(9)
(1996) 2764-2767.
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(Ca,A)2CuO2Br2: A=Na, K, 粉体粉末冶金, 43 巻 (9)(1996) 1087-1089.
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NEWS 58 (1996) 1-7.
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and X-ray Absorption Spectroscopy of PrNiO3, Journal of Electron Spectroscopy and Related
Phenomena 78 (1996) 191-194.
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M. Takano and K. Nagamine, Long Range Magnetic Ordeing in a Spin Ladder Compound
LaCuO2.5 Probed by μSR, Phys. Rev. B 54(14) (1996) R9628-R9630.
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Anomaly at Tsp of CuGeO3, J. Phys. Soc. Jpn. 65(10) (1996) 3404-3405.
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Excitations of the Spin-Peierls System CuGeO3, Phys. Rev. Lett. 77(17) (1996) 3649-3652.
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Homologous Series of Oxycarbonate Superconductors Sr2(Ca,Sr)n-1Cun(CO3)1-xOy(n=1, 2)
and
Ba2Ca2Cu3(CO3)1-x(BO3)xOy, Physica C 271 (1996) 79-82.
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- 秋光純, 上原政智, 梯子格子で超伝導, パリティ 11(12) (1996) 37-40.
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and M. Udagawa, Raman Scattering Study of Phonon and Magnetic Excitations Along the
Magnetic Chain in CuGeO3, J. Phys. Soc. Jpn. 65(12) (1996) 3754-3757.
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State Reactions and Some Physical Properties of Reduced Europium Niobates EuxNbOy (0.5 < x < 2), Ceramic Transitions 71 (1996) 295-306.
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Kadono, K. Nagamine, N. Kobayashi, Z. Hiroi, M. Takano, H. Takahashi, N. M?i and
K. Kinoshita, Appearance of Magnetic Long Range Order in the Spin Ladder Compound
LaCuO2.5, Hyperfine Interactions 104 (1997) 43-48.
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Temperature Crystal Structure of CuGeO3 by X-ray Diffraction Experiments: Observation of
New Superlattice Reflections, J. Phys.: Condens Matter 9 (1997) 809-824.
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A. Ogiwara, O. Fujita and J. Akimitsu, Magnetic Phase Diagram and Antiferromagnetic
Resonance in CuGe1-ySiyO3, J. Phys.: Condens Matter 9 (1997) 1331-1338.
- M. Hiroi, T. Hamamoto, M. Sera, H. Nojiri, N. Kobayashi, H. Motokawa, O. Fujita, A.
Ogiwara and J. Akimitsu, Unusual Antiferromagnetic State in Si Doped CuGeO3 Single
Crystals Studied by Specific Heat Measurements in Magnetic Fields, Phys. Rev. B 55(55)
(1997) R6125-R6128.
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Investigation of Y2BaNiO5, J. Phys. Soc. Jpn. 66(3) (1997) 873-876.
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in Spin-Peierls Material CuGeO3 by Submillimeter Wave ESR, J. Phys. Soc. Jpn. 66(4) (1997)
1115-1123.
- K. Motoya, K. Nakaguchi, N. Kayama, K. Inari, J. Akimitsu, K. Izawa and T. Fujita, Magnetic
Property of CeNiC2 Studied by Macroscopic and Microscopic Measurements, J. Phys. Soc.
Jpn. 66(4) (1997) 1124-1129.
- T. Yokoo, A. Zheludev, M. Nakamura and J. Akimitsu, Ni-Chain Gap Excitations in
(NdxY1-x)2BaNiO5: 1-D to 3-D Crossover, Phys. Rev. B 55(17) (1997) 11516-11520.
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- H. Takahashi, N. M?i,T. Nakanishi, T. Nagata, M. Uehara, J. Akimitsu and K. Kinoshita,
Superconductivity in Quantum Spin-Ladder Compound Ca13.6Sr0.4Cu24O41+δ, Physica B 237-238 (1997) 112-114.
- M. Fujita, M. Arai, M. Motokawa, O. Fujita, J. Akimitsu, S. M. Bennington and C. D. Frost,
Study on Quantum Magnetic Excitation of CuGeO3 Using Pulsed Neutron Scattering, Physica
B 237-238 (1997) 132-134.
- N. M?i, T. Nakanishi, H. Takahashi, T. Nagata, M. Uehara, J. Akimitsu, N. Motoyama,
H. Eisaki and S. Uchida, Pressure-Induced Superconductivity in Quantum Spin-Ladder
Compound Sr14-xCaxCu24O41+δ, Physica B 239 (1997) 137-140.
- T. Nagata, M. Uehara, J. Goto, N. Komiya, J. Akimitsu, N. Motoyama, H. Eisaki, S. Uchida,
H. Takahashi, T. Nakanishi and N. M?i, Superconductivity in the Ladder Compound
Sr2.5Ca11.5Cu24O41 (single crystal), Physica C 282-287 (1997) 153-156.
- T. Yokoya, H. -D. Kim, A. Ashihara, H. Kumigashira, H. Fujisawa, T. Takahashi, M.
Uehara, T. Nagata and J. Akimitsu, High-Resolution Angle-Resolved Photoemission Study
of Sr14-xCaxCu24O41 (x = 0 and 6), Physica C 282-287 (1997) 997-998.
- K. Magishi, S. Matsumoto, K. Ishida, Y. Kitaoka, K. Asayama, M. Uehara, T. Nagata and J.
Akimitsu, 63Cu NMR Study on Spin Ladder Compounds Sr14-xCaxCu24O41 (x = 9, 11.5),
Physica C 282-287 (1997) 1115-1116.
- T. Takahashi, T. Yokoya, A. Ashihara, O. Akaki, H. Fujisawa, A. Chainani, M. Uehara, T.
Nagata, J. Akimitsu and H. Tsunetsugu, Angle-Resolved Photoemission Study of the Ladder
Compound Sr14Cu24O41, Phys. Rev. B 56(13) (1997) 7870-7873.
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Y. Haga and R. Kadono, Anomalous Field Dependence of Magnetic Penetration Depth in
the Vortex State of CeRu2 Probed by Muon Spin Rotation, Phys. Rev. Lett. 79(19) (1997)
3771-3774.
- M. Sera, K. Yamamoto, Z. Hiroi, N. Kobayashi, O. Fujita, A. Ogiwara and J. Akimitsu,
Unusual Antiferromagnetic State in the Dimerized Phase in CuGe1-xSixO3 Studied by Lattice
Distortion, Phys. Rev. B 56(22) (1997) 14771-14775.
- J. R. Hester, K. Tomimoto, H. Noma, F. P. Okamura and J. Akimitsu, Electron Density in
YTiO3, Acta Cryst. B53 (1997) 739-744.
- G. Els, P. H. M. van Loosdrecht, P. Lemmens, H. Vonberg, G. G?therodt, G. S. Uhrig, O.
Fujita, J. Akimitsu, G. Dhalenne and A. Revcolevschi, Observation of Three-Magnon Light
Scattering in CuGeO3, Phys. Rev. Lett. 79(25) (1997) 5138-5141.
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Excitations in the Si Doped Spin-Peierls Compound CuGe1-xSixO3, J. Phys. Soc. Jpn 67 (1998) 645-650.
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Haldane System Y2BaNiO5 Observed by Submillimeter Wave ESR, J. Phys. Soc. Jpn. 67(7)
(1998) 2514-2521.
- Y. Kitaoka, K. Magishi, S. Matsumoto, K. Ishida, S. Ohsugi, K. Asayama, M. Uehara, T.
Nagata and J. Akimitsu, Systematic NMR Studies of High-Tc and Two-Leg Spin-Ladder
Systems, J. Magn. Magn. Mater. 177-181 (1998) 487-492.
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Newly Found Crystal Structure of CuGeO3 and its Anomalous Dependence of Magnetic
Susceptibility and Lattice Parameters on Temperature, J. Magn. Magn. Mater. 177-181 (1998) 703-704.
- S. Kimura, H. Ohta, M. Motokawa, T. Yokoo and J. Akimitsu, ESR Study of Haldane System
Y2BaNiO5 in Submillimeter Wave Region, J. Magn. Magn. Mater. 177-181 (1998) 624–625.
- 門野良典, 秋光純, 見えてきた FFLO 状態 -μSR による CeRu2 の磁場侵入長の直接測定, 固体物 理 33(3) (1998) 207-216.
- A. Zheludev, E. Ressouche, S. Maslov, T. Yokoo, S. Raymound and J. Akimitsu, Experimental
Measurement of the Staggered Magnetization Curve for a Haldane Spin Chain, Phys. Rev.
Lett. 80(16) (1998) 3630-3633.
- S. Katano, O. Fujita, J. Akimitsu, M. Nishi, K. Kakurai and Y. Fujii, Magnetic Phase Diagram
of the Spin-Peierls and Antiferromagnetic System CuGe1-xSixO3, Phys. Rev. B 57(17) (1998)
10280-10283.
- K. Magishi, S. Matsumoto, I. Kitaoka K. Ishida, K. Asayama, M. Uehara, T. Nagata and J.
Akimitsu, Spin Gap and Dynamics in Sr14-xCaxCu24O41 Comprising Hole-Doped Two-Leg
Spin Ladders: Cu NMR Study on Single Crystals, Phys. Rev. B 57(189) (1998) 11533-11544.
- M. Sera, M. Hiroi, K. Yamamoto, N. Kobayashi, O. Fujita, A. Ogiwara and J. Akimitsu,
Unusual Magnetic Properties of the D +AF and M +AF Phases in CuGe1-xSixO3, J. Phys.
Soc. Jpn. 67(5) (1998) 1544-1547
- G. Els, G. S. Uhrig, P. Lemmens, H. Vonberg, P. H. M. van Loosdrecht, G. G?therodt,
O. Fujita, J. Akimitsu, G. Dhalenne and A. Revcolevschi, Dopant-Bonud Spinons in
Cu1-xZnxGeO3, Europhys. Lett. 43 (1998) 463-468.
- T. Nakanishi, N. M?i, C. Murayama, H. Takahashi, T. Nagata, M. Uehara, J. Akimitsu, K.
Kinoshita, N. Motoyama, H. Eisaki and S. Uchida, High-Pressure Transport Properties of the
Superconducting Spin-Ladder System Sr14-xCaxCu24O41+δ, J. Phys. Soc. Jpn. 67(7) (1998)
2408-2414.
- M. Nishi, K. Kakurai, Y. Fujii, M. Yethiraj, D. A. Tennant, S. E. Nagler, J. A. Fernandez-Baca,
O. Fujita and J. Akimitsu, Magnetic Excitation of CuGeO3 under Applied Pressure, Physica
B 241-243 (1998) 537-539.
- M. Tamura, M. Sato, T. Den and J. Akimitsu, A New Superconductor with 1222 Structure
(Cu1-xMx) Sr2(Y1-yCey)2Cu2Oδ (M=Ti, V, Cr, Fe, Co, Ga, Ge, Mo, Ce, W and Re), Physica
C 33(1 & 2) (1998) 1-10.
- T. E. Hargreaves, H. Noma, J. Akimitsu, D. F. Brewer, N. E. Hussey and A. L. Thomson,
Low-Temprature Specific Heat of the Electron-Doped Superconductor Pr2-xCexCuO4-δ,
Physica C 33(1 & 2) (1998) 33-40
- T. Nagata, M. Uehara, J. Goto, J. Akimitsu, N. Motoyama, H. Eisaki, S. Uchida, H. Takahashi,
T. Nakanishi and N. M?i, Pressure-Induced Dimensional Crossover and Superconductivity
in the Hole-Doped Two-Leg Ladder Compound Sr14-xCaxCu24O41, Phys. Rev. Lett. 81(5)
(1998) 1090-1093.
- R. S. Eccleston, M. Uehara, J. Akimitsu, H. Eisaki, N. Motoyama and S. Uchida, The Spin
Dynamics of the Spin Ladder, Dimer Chain Material Sr14Cu24O41, Phys. Rev. Lett. 81(8)
(1998) 1702-1705.
- H. Nojiri, T. Hamamoto, O. Fujita, J. Akimitsu, S. Takagi and M. Motokawa, ESR Study
of the Field-Induced Magnetic Phase of Spin-Peierls CuGeO3 and MEM(TCNQ)2, J. Magn.
Magn. Mater. 177-181 (1998) 687-688.
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Excitations of Dimerized CuGeO3:Continuum Scattering and Interchain Modulation, Physica
B 241-243 (1998) 540-542.
- M. Hiroi, T. Hamamoto, M. Sera, H. Nojiri, N. Kobayashi, M. Motokawa, O. Fujita, A.
Ogiwara and J. Akimitsu, Magnetic Phase Diagrams of CuGe1-xSixO3 Studied by Specific
Heat Measurements, Physica B 246-247 (1998) 242-245.
- Y. Imanaka, N. Miura, H. Nojiri, S. Luther, M. V. Ortenberg, T. Yokoo and J. Akimitsu, ESR
Study of the Haldane Gap System Y2BaNiO5in High Magnetic Fields, Physica B 246-247 (1998) 561-564.
- T. Yokoo, S. Raymond, A. Zheludev, and S. Maslov, Magnetic Ordering, Spin Waves, and
Haldane-Gap Excitations in (NdxY1-x)2BaNiO5 Linear-Chain Mixed-Spin Antiferromagnets,
Phys. Rev.B 58(21) (1998) 14424-14435.
- J. Akimitsu, Superconductivity and Spin Gap State in the Two-Leg Ladder Material
Sr2.5Ca11.5Cu24 O41, J. Korea Phys. Soc. 33 (1998) S6-S10.
- T. Sato, T. Yokoya, T. Takahashi, M. Uehara, T. Nagata, J. Goto and J. Akimitsu,
Angle-Resolved Photoemission Study of Superconducting Ladder Compound Sr14-xCaxCu24 O41, J. Phys. Chem Solids 59(10-12) (1998) 1912-1916.
- T. Nakanishi, N. M?i, C. Murayama, H. Takahashi, T. Nagata, M. Uehara, J. Akimitsu, K.
Kinoshita, N. Motoyama, H. Eisaki and S. Uchida, High-Pressure Transport Properies of the
Superconducting Spin-Ladder System Sr14-xCaxCu24O41+δ, J. Phys. Soc. Jpn. 67(7) (1998)
2408-2414.
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J. Akimitsu, Linearly Polarized Cu K-edge Absorption Spectroscopy of CuGeO3: Orbital
Population Band Dispersion and Interatomic Interactions, Phys. Rev. B 59 (1999) 12450.
- 秋光純, 永田貴志, 梯子格子系の超伝導と磁性, 固体物理 34 (1999)159-171.
- S. Katano, T. Nagata, J. Akimitsu, M. Nishi and K. Kakurai, Spin Gap in the Hole-Doped
Spin Ladder System (Sr2.5Ca11.5)Cu24O41: Neutron Inelastic Scattering Study, Phys. Rev.
Lett. 82(3) (1999) 636-639.
- J. Akimitsu, Superconductivity and Magnetic Properties in the Spin Ladder Compound
(Sr,Ca)14Cu24O41, Physica B 259-261 (1999) 1030-1031.
- S. Katano, T. Nagata, H. Fujino, J. Akimitsu, M. Nishi and K. Kakurai, Pressure
Effects on Spin-Gap and Antiferromagnetism in the Hole-Doped Spin Ladder System
Sr14-xCaxCu24O41, Physica B 259-261 (1999) 1046-1047.
- J. Akimitsu, T. Nagata, H, Fujino, N. Motoyama, H. Eisaki, S. Uchida, H. Takahashi,
T. Nakanishi, N. M?i, M. Nishi, K. Kakurai, S. Katano, M. Hiroi, M. Sera and N.
Kobayashi, Spin and Charge Dynamics in the Hole-Doped Two-Leg Ladder Compound
Sr14-xCaxCu24O41, Springer Series in Solid-State Sciences 125 Physics and Chemistry of
Transition-Metal Oxides, ed. H. Fukuyama and N. Nagaosa (1999) 289-298.
- Y. Kitaoka, T. Mito, S. Ohsugi, K. Magishi, S. Matsumoto, T. Nagata, J. Akimitsu, N.
Motoyama, H. Eisaki and S. Uchida, NMR Probe of Magnetic Order and Spin Correlation
in Hole-Doped Ladder Cuprates, Springer Series in Solid-State Sciences 125 Physics and
Chemistry of Transition-Metal Oxides, ed.by H. Fukuyama and N. Nagaosa (1999) 299-311.
- T. Nagata, H. Fujino, J. Akimitsu, M. Nishi, K. Kakurai, S. Katano, M. Hiroi, M. Sera and
N. Kobayashi, Antiferromagnetic Ordering in the Spin Singlet State on the Ladder / Chain
Materinal: Sr2.5Ca11.5Cu24O41, J. Phys. Soc. Jpn. 68 (1999) 2206-2209.
- S. Raymond, T. Yokoo, A. Zheldev, S. E. Nagler, A. Wildes and J. Akimitsu,
Polarized-Neutron Observation of Longitudinal Haldane-Gap Excitations in Nd2BaNiO5,
Phys. Rev. Lett. 82(11) (1999) 2382-2385.
- T. Nagata, H. Fujino, K. Ohishi, J. Akimitsu, S. Katano, M. Nishi and K. Kakurai, Coexistence
of the Spin Liquid State and the Magnetic Ordering in the Spin Ladder Compound;
Sr14-xCaxCu24O41, J. Phys. Chem. Solids, 60 (1999) 1039-1043.
- M. Nishi, K. Kakurai, Y. Fujii, S, Katano, J. Akimitsu, M. Yethiraj and J. A. Fernandez-Baca,
New Aspects of the b*-LA Phonon of CuGeO3, J. Phys. Chem. Solids 60 (1999) 1109-1111.
- H. Nojiri, H. Ohta, S. Okubo, O. Fujita, J. Akimitsu and M. Motokawa, Submillimeter Wave
ESR Study of Spin Gap Excitations in CuGeO3, J. Phys. Soc. Jpn. 68 (1999) 3417-3423.
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in the Hole-Doped Two-Leg Ladder Compound Sr2.5Ca11.5Cu24O41: Evidence from Cu-NMR
and -NQR Studied on a Single Crystal, Phys. Rev. Lett. 82(23) (1999) 4715-4718.
- N. Ogita, Y. Tsunezumi, J. Akimitsu and M. Udagawa, Raman scattering study of
Cu(Ge1-xSix)O3, Physica B 263-264 (1999) 832-834.
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