2000-

  1. R.I. Bewey, R.S. Eccleston, T. Nagata and J. Akimitsu: Hole migration in the spin-ladder, dimer chain material Sr2.5Ca11.5Cu24O41, Physica B 276-278 (2000) 662.
  2. H. Ichikawa, J. Akimitsu, M. Nishi and K. Kakurai: Direct Observation of Orbital Ordering in YTiO3, Physica B, 281-282 (2000) 482-484.
  3. S. Ohsugi, Y. Kitaoka, K. Magishi, T. Nagata, H. Fujino and J. Akimitsu: Cu NMR and NQR Studies on the Magnetic Order in Sr2.5Ca11.5Cu24 O41, Physica B, 284-288
  4. Y. Gotoh, Y. Takahashi, J. Akimoto, S. Mizuta, M. Onoda, H. Fujino, T. Nagata and J. Akimitsu: Role of structural modulation in the composite crystal (Sr2Cu2O3) 0.70CuO2, “Sr14Cu24O41” with two-legged spin ladder, Physica C, 341-348 (2000) 469-470.
  5. T. Nakanishi, H. Takahashi, N. Takeshita, N. Mo^ri, N. Motoyama,H. Eisaki, S. Uchida, H. Fujino, T. Nagata and J. Akimitsu: Upper Critical Field of Spin-Ladder Sr2Ca12Cu24O41, Physica B, 281-282 (2000) 957-958.
  6. D. Braithwaite, T. Nagata, I. Sheikin, H. Fujino, J. Akimitsu and J. Flouquet: Upper Critical Field of the Spin Ladder System Sr2.5Ca11.5O41, Solid State Commun., 114 (2000) 533-536.
  7. M. Hiroi, M. Sera, N. Kobayashi and J. Akimitsu: Study on CuGe0.9885Si0.0115O3 in High Magnetic Fields by Specific Heat Measurements, Physica B, 281-282 (2000) 669-670.
  8. A. Zheludev, S. Maslov, T. Yokoo, J. Akimitsu, S. Raymond, S. E. Nagler and K. Hirota: Role of Single-Ion Excitations in the Mixed-Spin Quasi One-Dimensional Quantum Antiferromagnet Nd2BaNiO5, Phys. Rev. B, Vol.61 No.17(2000) 11601-11612.
  9. T. Yokoo and J. Akimitsu: Magnetic Excitations in the Haldane System R2BaNiO5, J. Phys. Soc. Jpn., 69 (2000) Suppl.B 95-101.
  10. J. Kikuchi, K. Ishiguchi, K. Motoya, M. Itoh, K. Inari, N. Eguchi and J. Akimitsu: NMR and Neutron Scattering Studies of Quasi One-Dimensional Magnet CuV2O6, J. Phys. Soc. Jpn.., Vol.69 No.8 (2000) pp. 2660-2668.
  11. J. Akimitsu, K. Ohishi, T. Yokoo, K Kakuta, H. Fujino, T. Nagata, R. Kadono, M. Nishi, K. Kakurai and S. Katano: The magnetic ordering in the spin ladder compound Sr2.5Ca11.5Cu24O41, Physica B, 289-290 (2000) 157-160.
  12. K. Ohishi, K. Kakuta, J. Akimitsu, W. Higemoto, R. Kadono, R.I. Miller, A. Price, R.F. Kiefl, J.E. Sonier, M. Nohara, H. Suzuki and H. Takagi: Anomalous field dependence of the vortex-core radius and magnetic penetration depth in YNi2B2C probed by mSR, Physica B, 289-290 (2000) 377-380.
  13. K. Ishii, A. Yamashita, K. Ohishi, J. Akimitsu, R. Kadono, N. Kobayashi, M. Takano and Z. Hiroi: Appearance of magnetic long-range order in the spin ladder compound La1-xSrxCuO2.5, Physica B, 289-290 (2000) 165-167.
  14. K. Ohishi, T. Yokoo, K. Kakuta, H. Fujino, T. Nagata, J. Akimitsu and R. Kadono: Spatially Modulated Antiferromagnetism in Sr2.5Ca11.5Cu24O41 Probed by Muon Spin Relaxation, J. Phys. Soc. Jpn., Vol.69 No.8 (2000) pp. 2427-2430.
  15. S. Ohsugi, Y. Kitaoka, K. Magishi, T. Nagata, H. Fujino and J. Akimitsu: Cu NMR and NQR studies on the magnetic order in Sr2.5Ca11.5Cu24O41, Physica B, 284-288 (2000) 1591-1592.
  16. S. Okubo, H. Ohta, T, Tanaka, T. Yokoo and J. Akimitsu: High-field magnetization measurement of three-dimensional antiferromagnet Nd2BaNiO5 single crystal, Physica B, 284-288 (2000) 1475-1476.
  17. R. Kadono, A. Koda, W. Higemoto, K. Ohishi, K. Kakuta, J. Akimitsu, K. Ishida, Y. Kitaoka, C. Geibel and F. Steglich: Anomalous local magnetic shielding effect at muon site in Sr2.5Ca11.5Cu24O41 and Ce0.99Cu2.02Si2, Physica B, 289-290 (2000) 322-325.
  18. K. Kakuta, K. Ohishi, S. Furuya, W. Higemoto, R. Kadono and J. Akimitsu: Antiferromagnet (Ln,Ca)CuO2.5 near the quantum critical point (Ln=Pr,Nd), Physica B, 289-290 (2000) 168-171.
  19. N. Ogita, Y. Sakaguchi, Y. Fujino, T. Nagata, J. Akimitsu and M. Udagawa: Raman scattering of Sr14-xCaxCu24O41, Physica B, 281 & 282 (2000) 955-956.
  20. R. Kadono, W. Higemoto, A. Koda, T. Yokoo, K. Kakuta, K. Ohishi, H. Takagiwa and J. Akimitsu : Spin Dynamics of 4f Electrons in CeB6 Studied by Muon Spin Relaxation, J. Phys. Soc. Jpn., Vol. 69 No. 10 (2000) 3189-3192.
  21. Y. Zenitani, N. Watanabe and J. Akimitsu: Trial of hole-doping to 4-and 5-leg ladder compounds, Physica C, 341-348 (2000) 355-358.
  22. N. Ogita, Y. Fujita, Y. Sakaguchi, Y. Fujino, T. Nagata, J. Akimitsu and M. Udagawa: Raman scattering study of Sr14-xCaxCu24O41, J. Phys. Soc. Jpn., 69 8 (2000) 2684-2690.
  23. N. Ogita, Y. Sakaguchi, Y. Fujita, T. Nagata, J. Akimitsu and M. Udagawa: Raman scattering of Sr14-xCaxCu24O41, Physica B, 281-282 (2000) 955-956.
  24. N. Nu¨cker, M. Merz, C.A. Kuntscher, S. Gerhold, S. Schuppler, R. Neudert, M.S. Golden, J. Fink, D. Schild, S. Stadler, V. Chakarian, J. Freeland, Y.U. Idzerda, K. Conder, M. Uehara, T. Nagata, J. Goto, J. Akimitsu, N. Motoyama, H. Eisaki, S. Uchida, U. Ammerahl and A. Revcolevschi: Hole distribution in (Sr,Ca,Y,La)14Cu24O41 ladder compounds studied by x-ray absorption spectroscopy, Phys. Rev. B 62 (2000) 14384-14392.
  25. M. Nishi, J. Akimitsu, O. Fujita, K. Kakurai and Y. Fujii: Uniaxial Pressure Dependence of Spin-Peiers Transition Temperature in CuGeO3, J. Phys. Soc. Jpn. 70 (2000) Suppl. A pp.172-173. Proc. Int, Symposium on Advances in Neutron Scattering Research, Tokai, 2000.
  26. M. Nishi, K. Kakurai, Y. Fujii, S. Katano and J. Akimitsu: Lattice dynamics of CuGeO3 by inelastic neutron scattering, J. Phys. Chem. Sol., 62 (2001) 355-356.
  27. J. Akimitsu: Antiferromagnetism and Spin Gap State in the two-leg Ladder System, J. Phys. Chem. Sol., 65 (2001) 135-140.
  28. H. Takagiwa, J. Akimitsu, H. Furukawa and H. Yoshizawa: Coexistence of Superconductivity and (Anti-)Ferromagnetism in RuSr2YCu2O8, J. Phys. Soc. Jpn., Vol. 70 No. 2 (2001) pp. 333-336.
  29. J. Nagamatsu, N. Nakagawa, T. Muranaka, Y. Zenitani and J. Akimitsu: Superconductivity at 39K in magnesium diboride, Nature, Vol. 410 No. 6824 (2001) pp.63-64.
  30. C. Sekar, T. Watanabe, A. Matsuda, H. Shibata, Y. Zenitani and J. Akimitsu: Crystal Growth, Structure, and Transport Properties of the Five-Leg Spin Ladder Compound La8Cu7O19, J. Sol. Sta. Chem., 156 (2001) 422-427.
  31. T. Muranaka, S. Margadonna, I. Maurin, K. Brigatti, D. Colognesi, K. Prassides, Y. Iwasa, M. Arai, M. Takata and J. Akimitsu: Vibrational Spectroscopy of Superconducting MgB2 by Neutron Inelastic Scattering, J. Phys. Soc. Jpn., Vol. 70 No. 6 (2001) pp.1 480-1482.
  32. T. Muranaka, J. Akimitsu and M. Sera: Thermal transport properties of MgB2, Phys. Rev. B, Vol. 64 (2001) 020505.
  33. K. Prassides, Y. Iwasa, T. Ito, H. Chi, K. Uehara, E. Nishibori, M. Takata, M. Sakata, Y. Ohishi, O. Shimomura, T. Muranaka and J. Akimitsu: Compressibility of the MgB2 superconductor, Phys. Rev. B, Vol. 64 (2001) 012509.
  34. T. Takahashi, T. Sato, S. Souma, T. Muranaka and J. Akimitsu: High-Resolution Photoemission Study of MgB2, Phys. Rev. Lett., Vol. 86 No. 21 (2001) 4915-4917.
  35. B. Gorshunov, C.A. Kuntscher, P. Haas, M. Dressel, F.P. Mena, A.B. Kuz’menko, D. van der Marel, T. Muranaka, and J. Akimitsu: Optical measurements of the superconducting gap in MgB2, Eur. Phys. J. B, 21 (2001) 159-161.
  36. H. Ohta, S. Okubo, T. Sakurai, T. Goto, K. Kirita, K. Ueda, Y. Uwatoko, T. Saito, M. Azuma, M. Takano and J. Akimitsu: High-frequency ESR measurements using pulsed magnetic fields in Kobe, Physica B, 294-295 (2001) 624-629.
  37. S. Okubo, T. Yamada, H. Ohta, T. Yokoo, J. Akimitsu, H. Nojiri and M. Motokawa: High-field AFMR measurement of Nd2BaNiO5 single crystal in the submillimeter wave region, Physica B, 294-295 (2001) 51-54.
  38. R. Kadono, W. Higemoto, A. Koda, K. Ohishi, T. Yokoo, J. Akimitsu, M. Hedo, Y. Inada, Y. O nuki, E. Yamamoto and Y. Haga: Possible nodal vortex state in CeRu2, Phys. Rev. B, Vol. 63 (2001) 224520.
  39. M. Sera, H. Ichikawa, T. Yokoo, J. Akimitsu, M. Nishi, K. Kakurai and S. Kunii: Anomalous Temperature Dependence of the Magnetic Field Induced Antiferromagnetic Moment in the Antiferroquadrupolar Ordered State of CeB6, Phys. Rev. Lett., Vol. 86 No. 8 (2001) 1578-1581.
  40. J. Akimitsu: Antiferromagnetism and spin gap state in the two-leg ladder system, J. Phys. Chem. Sol., Vol. 62 (2001) 135-140.
  41. E. Nishibori, M. Takata, M. Sakata, H. Tanaka, T. Muranaka and J. Akimitsu: Bonding Nature in MgB2, J. Phys. Soc. Jpn., Vol. 70 No.8 (2001) pp.2252-2254.
  42. J. Akimitsu, K. Takenawa, K. Suzuki, H. Harima and Y. Kuramoto: High-Temperature Ferromagnetism in CaB2C2, Science, August 10 Vol. 293 (2001) 1125-1127.
  43. H. Kotegawa, K. Ishida, Y. Kitaoka, T. Muranaka and J. Akimitsu: Evidence for Strong-coupling s-wave Superconductivity in MgB2: 11B NMR Study, Phys. Rev. Lett., 87 (2001) 127001-01-127001-04.
  44. T. Nagata, H. Fujino, K. Satoh, N. Yamamori, J. Akimitsu, S. Katano, M. Nishi, K. Kakurai, M. Hiroi, M. Sera, N. Kobayashi, K. Tenya, H. Amitsuka, T. Takigawa, H. Inago and T. Sakakibara: Antiferromagnetic Ordering in the Spin Ladder Compound; Sr14-xCaxCu24O41, J. Phys. Soc. Jpn., Vol. 70 No.8 (2001) pp.2419-2424.
  45. S. Margadonna, T. Muranaka, K. Prassides, I. Maurin, K. Brigatti, R. M. Ibberson, M. Arai, M. Takata and J. Akimitsu: Phase inhomogeneities and lattice expansion near Tc in the Mg11B2 superconductor, J. Phys.:Condens. Matter, 13 (2001) L795-L802.
  46. T. Watanabe, C. Sekar, H. Shibata, T. Fujii, A. Matsuda, Y. Zenitani and J. Akimitsu: Novel approaches to crystallize materials with narrow liquidus lines: application to spin ladder compound La4+4nCu8+2nO14+8n(n=2,3) and high-Tc cuprate Bi-2223, J. Crystal Growth, 229(2001) 316-320.
  47. T. Watanabe, C. Sekar, H. Shibata, A. Matsuda, Y. Zenitani and J. Akimitsu: Crystal growth and transport properties of spin ladder compounds La4+4nCu8+2nO14+8n(n=2,3), Physica C, 357-360 (2001) 380-383.
  48. C. Sekar, T. Watanabe, A. Matsuda, H. Shibata, Y. Zenitani and J. Akimitsu: Effect of silver addition on structure and electrical properties of the spin ladder compound La2Cu2O5single crystals, J. Crystal Growth, 233 (2001) 466-472.
  49. Y. Tokunaga, H. Kotegawa, K. Ishida, Y. Kitaoka, H. Takagiwa and J. Akimitsu: NMR Evidence for Coexistence of Superconductivity and Ferromagnetic Component in Magnetic Superconductor RuSr2YCu2O8:99,101Ru and 63Cu NMR, Phys. Rev. Lett., 86 No. 25 (2001) 5767-5770.
  50. S. Ohsugi, Y. Kitaoka, M. Azuma, Y. Fujishiro, M. Takano, T. Nagata, H. Fujino and J. Akimitsu: Cu NMR/NQR Studies on Magnetism in Impurity/Hole-Doped Spin-Ladder Compounds, Hyperfine Interactions, 133 (2001) 157-162.
  51. J. Akimitsu, H. Ichikawa, N. Eguchi, T. Miyano, M. Nishi and K. Kakurai: Direct Observation of Orbital Ordering in YTiO3 by Means of the Polarized Neutron Diffraction Technique, J. Phys. Soc. Jpn., Vol. 70 No. 12 (2001) 3475-3478.
  52. K. Ohishi, K. Kakuta, J. Akimitsu, W. Higemoto, R. Kadono, J. E. Sonier, A. N. Price, R. I. Miller, R. F. Kiefl, M. Nohara, H. Suzuki and H. Takagi: Nonlocal effects and shrinkage of the vortex core radius in YNi2B2C probed by muon spin rotation, Phys. Rev. B, Vol. 65 No. 14 (2002) 140505-1-140505-4.
  53. M. Sera, F. Iga, S. Kobayashi, H. Sugamoto, K. Nagatomo, K. Umeo, S. Tsuji, K. Kojima, J. Akimitsu and Y. Zenitani: Ce site substitution effects on the multipolar interactions in CeB6, J. Phys. Soc. Jpn., Vol. 71 (2002) Suppl.pp. 52-55.
  54. M. Saitoh, H. Takagiwa, H. Ichikawa, T. Yokoo, J. Akimitsu, M. Nishi, K. Kakurai, M. Takata, N. Okada, M. Sakata and S. Kunii: Where is the magnetic moment in CeB6?, J. Phys. Soc. Jpn., Vol. 71 (2002) Suppl.pp. 106-108.
  55. H. Takagiwa, K. Ohishi, J. Akimitsu, W. Higemoto, R. Kadono, F. Iga and M. Sera: Magnetic Properties in Phase IV of Ce0.8Nd0.2B6 Studied by Muon Spin Relaxation, J. Phys. Soc. Jpn., Vol. 71 (2002) Suppl.pp. 118-120.
  56. M. Udagawa, S. Nagai, N. Ogita, F. Iga, R. Kaji, K. Sumida, J. Akimitsu, S. Kunii, K. Suzuki, H. Onodera and Y. Yamaguchi: Raman scattering investigation of high temperature ferromagnetic crystals, J. Phys. Soc. Jpn., Vol. 71 (2002) Suppl.pp. 314-316.
  57. H. Kotegawa, K. Ishida, Y. Kitaoka, T. Muranaka, N. Nakagawa, H. Takagiwa and J. Akimitsu: Strong coupling s-wave superconductivity in MgB2: 11B-NMR Study of MgB2 and Al-doped MgB2, J. Phys. Soc. Jpn., Vol. 71 (2002) Suppl.pp. 332-334.
  58. K. Ohishi, T. Muranaka, J. Akimitsu, A. Koda, W. Higemoto and R. Kadono: Physical Properties in Flux Line Lattice State in MgB2 Probed by mSR, J. Phys. Soc. Jpn., Vol. 71 (2002) Suppl.pp. 335-337.
  59. T. Muranaka, T. Yokoo, M. Arai, E. Margiolaki, K. Brigatti, K. Prassides, O. Petrenko and J. Akimitsu: Vibrational spectroscopy of MgB2 by neutron inelastic scattering, J. Phys. Soc. Jpn., Vol. 71 (2002) Suppl.pp. 338-340.
  60. H. Narayan, S. B. Samanta, A. Gupta, A. V. Narlikar, R. Kishore, K. N. Sood, D, Kanjilal, T. Muranaka and J. Akimitsu: SEM, STM/STS and heavy ion irradiation studies on magnesium diboride superconductor, Physica C, 377 (2002) 1-6.
  61. M. Saitoh, N. Okada, E. Nishibori, H. Takagiwa, T. Yokoo, M. Nishi, K. Kakurai, S. Kunii, M. Takata, M. Sakata and J. Akimitsu: Anomalous Spin Density Distribution in CeB6, J. Phys. Soc. Jpn., Vol. 71 No. 10 (2002) 2369-2372.
  62. S. Ohsugi, S. Matsumoto, Y. Kitaoka, M. Matsuda, M. Uehara, T. Nagata and J. Akimitsu: Field-induced magnetic order in disordered single crystal Sr14Cu24O41: Cu-NMR Study, Physica B, 312-313 (2002) 603-605.
  63. A.B. Kuz’menko, F.P. Mena, H.J.A. Molegraaf, D. van der Marel, B. Gorshunov, M. Dressel, I.I. Mazin, J. Kortus, O.V. Dolgov, T. Muranaka and J. Akimitsu: Manifestation of multiband optical properties of MgB2, Solid State Commun., 121 (2002) 479-484.
  64. H. Kotegawa, K. Ishida, Y. Kitaoka, T. Muranaka, N. Nakagawa, H. Takagiwa and J. Akimitsu: Evidence for high-frequency phonon mediated s-wave superconductivity: 11B NMR study of Al-doped MgB2, Phys. Rev. B, 66 (2002) 064516.
  65. E. Z. Kurmaev, I. I. Lyakhovskaya, J. Kortus, A. Moewes, N. Miyata, M. Demeter, M. Neumann, M. Yanagihara, M. Watanabe, T. Muranaka and J. Akimitsu: Electronic structure of MgB2: X-ray emission and absorption studies, Phys. Rev. B, 65 (2002) 134509.
  66. S.B. Samanta, H. Narayan, A. Gupta, A.V. Narlikar, T. Muranaka and J. Akimitsu: Grain boundaries as weak links: The case of MgB2 with reference to YNi2B2C, Phys. Rev. B, 65 (2002) 092510.
  67. T. Takasaki, T. Ekino, T. Muranaka, H. Fujii and J. Akimitsu, Superconducting gap in polycrystalline MgB2 studied by electron tunneling, Physica C, 378-381 (2002) 229-333.
  68. Y. Zenitani and J. Akimitsu: Discovery of the new superconductor MgB2 and its recent development, JSAP International, No. 6 (2002) 4-11.
  69. H. Ohta, T. Sakurai, S. Okubo, M. Saruhashi, T. Kunimoto, Y. Uwatoko and J. Akimitsu: Development of a high-field ESR system under high pressure, J. Phys.: Condens. Matter 14 (2002) 10637-10640.
  70. S. Ohsugi, S. Matsumoto, Y. Kitaoka, M. Matsuda, M. Uehara, T. Nagata and J. Akimitsu: Cu-NMR Study on Disordered Sr14Cu24O41, Z. Naturforsch. 57a (2002) 509-512.
  71. H. Kotegawa, K. Ishida, Y. Kitaoka, T. Muranaka, N. Nakagawa, H. Takagiwa and J. Akimitsu: Evidence for strong-coupling s-wave superconductivity in MgB2: 11B-NMR study of MgB2 and the related materials, Physica C 378-381 (2002) 25.
  72. E.Z. Kurmaev, I.I. Lyakhovskaya, J. Kortus, M. Demeter, M. Neumann, T. Imazono, N. Miyata, M. Yanagihara, M. Watanabe, T. Muranaka and J. Akimitsu: X-ray emission and absorption spectra and electronic structure of MgB2, Surface Review and Letters 9 (2002) 1097-1102.
  73. B. Gorshunov, P. Haas, T. Room, M. Dressel, T. Vuletić, B. Korin-Hamzić, S. Tomić, J. Akimitsu and T. Nagata: Charge-density wave formation in Sr14-xCaxCu24O41, Phys. Rev. B 66 (2002) 060508(R)1-4.
  74. H. Takagiwa, K. Ohishi, J. Akimitsu, W. Higemoto, R. Kadono, M. Sera and S. Kunii: Magnetic Properties in Phase IV of Ce0.7Nd0.3B6 Studied by Muon Spin Relaxation, J. Phys. Soc. Jpn. Vol. 71 (2002) 31-34.
  75. T. Muranaka and J. Akimitsu: Superconductivity in MgB2, Studies of High Temperature Superconductors 38 (2002) 485-503 (Superconducting Magnesium Diboride) edited by Anant Narlikar.
  76. S. Souma, H. Komatsu, T. Takahashi, R. Kaji, T. Sasaki, T. Yokoo and J. Akimitsu: Electronic Band Structure and Fermi Surface of CaB6 Studied by Angle-Resolved Photoemission Spectroscopy, Phys. Rev. Lett. 90 (2003) 027202.
  77. M. Hidaka, N. Tokiwa, M. Fujii, S. Watanebe and J. Akimitsu: Correlation between the structural and antiferromagnetic phase transitions in ZnCr2Se4, Phys. Stat. Sol. (b) 236, No.1 (2003) 9-18.
  78. M. Hidaka, M. Yoshimura, S. Takahasi, S. Watanabe and J. Akimitsu: Structural modulation of spinel ZnCr2Se4 in the vicinity of antiferromagnetic phase transition induced by an applied magnetic field, Phys. Stat. Sol. (b) 236, No.1 (2003) 209-218.
  79. M. Hidaka, M. Yoshimura, N. Tokiwa, J. Akimitsu, Yong Jun Park, Jae Hyun Park, Sung Dae Ji and Ki Bong Lee: Structural modulation induced by the incommensurate antiferromagnetic phase transition in ZnCr2Se4, Phys. Stat. Sol. (b) 236 No.3 (2003) 570-577.
  80. K. Ohishi, K. Kakuta, J. Akimitsu, A. Koda, W. Higemoto, R. Kadono, J. E. Sonier, A. N. Price, R. I. Miller, R. F. Kiefl, M. Nohara, H. Suzuki and H. Takagi: Anomalous quasiparticle exitations in Y(Ni1-xPtx)2B2C, Physica B 326 (2003) 364-368.
  81. H. Takagiwa, A. Kawano, Y. Mizuta, T. Yamamoto, M. Yamada, K. Ohishi, T. Muranaka, J. Akimitsu, W. Higemoto and R. Kadono: Magnetic penetration depth of a new boride superconductor Re3B, Physica B 326 (2003) 355-358.
  82. K. Ohishi, T. Muranaka, J. Akimitsu, A. Koda, W. Higemoto and R. Kadono: Quasiparticle Excitations outside the Vortex Cores in MgB2 Probed by Muon Spin Rotation, J. Phys. Soc. Jpn. 72 (2003) 29.
  83. T. Ekino, T. Takasaki, T. Muranaka, J. Akimitsu and H. Fujii: Tunneling spectroscopy of the superconducting gap in MgB2, Phys. Rev. B 67 (2003) 094504-1-6.
  84. S. Ohsugi, Y. Kitaoka, T. Nagata, H. Fujino and J. Akimitsu: Cu-NQR Study on Single Crystals Sr14-xCaxCu24O41 with x = 0-11.5, J. Low. Temp. Phys. 131 (2003) 747-751.
  85. N. Ogita, S. Nagai, N. Okamoto, F. Iga, S. Kunii and J. Akimitsu: Raman scattering study of hexaboride crystals, Physica B 328 (2003) 131-134.
  86. N. Ogita, S. Nagai, N. Okamoto, M. Udagawa, F. Iga, M. Sera, J. Akimitsu and S. Kunii: Raman scattering of RB6 (R=Ca, Ce, Pr, Gd, Dy and Yb), Physica B: Condensed Matter, 329-333 (2003) 661-662.
  87. J. Akimitsu and T. Muranaka: Superconductivity in MgB2, Physica C 388-389 (2003) 98-102.
  88. T. Vuletić, B. Korin-Hamzić, S. Tomić, B. Gorshunov, P. Haas, M. Dressel, J. Akimitsu, T. Sasaki and T. Nagata: Variable-range hopping conductivity in the copper-oxygen chains of La3Sr3Ca8Cu24O41, Phys. Rev. B 67 (2003) 184521-1-4.
  89. T. Takasaki, T. Ekino, T. Muranaka, H. Fujii and J. Akimitsu: Multiple-gap structure of the binary superconductor MgB2, Physica C 388-389 (2003) 147-148.
  90. K. Ohishi, K. Kakuta, J. Akimitsu, A. Koda, W. Higemoto, R. Kadono, J.E. Sonier, A.N. Price, R.I. Miller and R.F. Kiefl: Excess quasiparticles outside the vortex cores in Y(Ni1-xPtx)2B2C, Physica C 388-389 (2003) 197-198.
  91. T. Ekino, T. Takasaki, H. Fujii, T. Muranaka and J. Akimitsu: Tunneling Spectroscopy of the Energy Gap in MgB2 Under Magnetic Fields, Acta Physica Polonica B Vol. 34 No. 2 (2003) 523-526
  92. T. Vuletić, B. Korin-Hamzić, S. Tomić, B. Gorshunov, P. Haas, T. Room, M. Dressel, J. Akimitsu, T. Sasaki and T. Nagata: Suppression of the Charge-Density-Wave State in Sr14Cu24O41 by Calcium Doping, Phys. Rev. Lett. Vol. 90 No. 25 (2003) 257002-1-4.
  93. T. Ekino, T. Takasaki, T. Muranaka, H. Fujii, J. Akimitsu and S. Yamanaka: Tunneling spectroscopy of MgB2 and Li0.5(THF)yHfNCl, Physica B 328 (2003) 23-25.
  94. A. Kawano, Y. Mizuta, H. Takagiwa, T. Muranaka and J. Akimitsu: The superconductivity in Re-B system, J. Phys. Soc. Jpn. Vol. 72 No. 7 (2003) 1724-1728.
  95. M. Nishi, Y. Fujii, H. Kadowaki, S. Katano, K. Kakurai and J. Akimitsu: Phonon anomaly in the inorganic spin-Peierls compound CuGeO3, Physica B 329-333 (2003) 872-873.
  96. K. Yagasaki, S. Notsu, Y. Shimoji, T. Nakama, R. Kaji, T. Yokoo, J. Akimitsu, M. Hedo and Y. Uwatoko: Resistivity and thermopower of CaB6 single crystal, Physica B: Condensed Matter 329-333 (2003) 1259-1260.
  97. J. Akimitsu: High-Tc Superconductivity in MgB2, NEW MATERIALS ”Proceeding of Asia Academic Seminar”,1-18.
  98. J. Mucha, M. Pękala, J. Szydlowska, W. Gadomski, J. Akimitsu, J.-F. Fagnard, P. Vanderbemden, R. Cloots and M. Ausloos, Magnetotransport study of MgB2 superconductor, Supercond. Sci. Technol. 16 (2003) 1167-1172.
  99. N. Miyata, T. Imazono, M. Yanagihara, M. Watanabe, T. Muranaka and J. Akimitsu: B K Emission Spectra for MgB2 and Al-doped MgB2, J. Phys. Soc. Jpn. Vol. 72 No. 7 (2003) 1810-1811.
  100. D. Braithwaite, J. Thomasson, B. Salce, T. Nagata, I. Sheikin, H. Fujino, J. Akimitsu and J. Flouquet: Coexistence of Antiferromagnetic order and Superconductivity in the Spin Ladder System Sr2.5Ca11.5Cu24O41, Frontiers of High Pressure Research II: Application of High Pressure to Low Dimentional Novel Electric Materials, H.D. Hochheimer et al. (eds), 383-396.
  101. Y. Gotoh, I. Yamaguchi, Y. Takahashi, J. Akimoto, M. Onoda, H. Fujino, T. Nagata and J. Akimitsu: Structural modulation, hole distribution, and hole-ordered structure of the incommensurate composite crystal (Sr2Cu2O3)0.70CuO2, Phys. Rev. B 68 (2003) 224108-1-15.
  102. Y. Yoshino, S. Kobayashi, S. Tsuji, H. Tou, M. Sera, F. Iga, Y. Zenitani and Jun Akimitsu: Nd Ion Doping Effects on the Multipolar Interactions in CeB6, J. Phys. Soc. Jpn. 73 (2004) 29-32.
  103. N. Ogita, S. Nagai, N. Okamoto, F. Iga, S. Kunii, T. Akamtsu, J. Akimitsu and M. Udagawa: Raman scattering study of CaB6 and YbB6, J. Solid State Chem. 177 (2004) 461-465
  104. G. Amano, S. Akutagawa, T. Muranaka, Y. Zenitani and J. Akimitsu: Superconductivity at 18 K in Yttrium Sesquicarbide System, Y2C3, J. Phys. Soc. Jpn. 73 No.3 (2004) 530-532.
  105. S. Ohsugi, S. Matsumoto, Y. Kitaoka, M. Matsuda, M. Uehara, T. Nagata and J. Akimitsu: Observation of field-induced long-range order in disordered Sr14Cu24O41, J. Magn. Magn. Mater. 272-276 Suppl. 1 (2004) E683-E684.
  106. M. Itoh, T. Kiyama, K. Kodama and J. Akimitsu: Orbital ordering in YTiO3:Ti NMR in a single crystal, J. Magn. Magn. Mater. 272-276 (2004) 90-91.
  107. T. Yokoo, T. Muranaka, M. Arai, K. Papagelis, K. Prassides, J. Taylor, S.M. Bennington and J. Akimitsu: Evidence of Electron-Phonon Interaction in Al-Substituted Mg1-xAlxB2, Journal of Superconductivity 17(2) (2004) 199-203.
  108. T. Takasaki, T. Ekino, T. Muranaka, T. Ichikawa, H. Fujii and J. Akimitsu: Multiple-Gap Features from Break-Junction Tunneling in the Superconducting MgB2, J. Phys. Soc. Jpn. 73 (2004) 1902-1913.
  109. S. Souma, T. Takahashi, H. Komatsu, T. Satou, H. Matsui, N. Kimura, H. Aoki, S. Kunii and J. Akimitsu: X-ray angle-resolved photoemission spectroscopy of CaB6, Phys. Rev. B 70 (2004) 073104-1 -4.
  110. T. Ekino, T. Takasaki, H. Takagiwa, J. Akimitsu and H. Fujii: Tunneling measurements of superconductor NbB2, Physica C 408-410 (2004) 828-829.
  111. T. Takasaki, T. Ekino, H. Takagiwa, T. Muranaka, H. Fujii and J. Akimitsu: Energy gap structure in the binary superconductor MB2 (M=Nb and Mg), Physica C 412-414 (2004) 266-269.
  112. S. Kuroiwa, H. Takagiwa, M. Yamazawa, J. Akimitsu, K. Ohishi, A. Koda, W. Higemoto and R. Kadano: Unconvetional Behavoir of Field-induced Quasiparticle Excitation in Ca(Al0.5Si0.5)2, J. Phys. Soc. Jpn. 73 No. 10 (2004) 2631-2634.
  113. S. Akutagawa and J. Akimitsu: The new superconductor in the lanthanoid carbide, FSST News 102 (2004) 1-3.
  114. A. I.Voitenko, A. M. Gabovich, T. Ekino, H. Fujii, T. Takasaki, Mai Suan Li, H. Szymczak, M. Pekala, J. Akimitsu, T. Muranaka: Spatially inhomogeneous superconductivity in MgB2, First International Conference: Fundamental Problems of High-Tc superconductivity-FPS-04 (2004) 214-215.
  115. T. Sasaki, T. Yokoo, S. Katano and J. Akimitsu: Hole-induced Novel Spin State within Haldane Gap in Nd2-xCaxBaNiO5, J. Phys. Soc. Jpn. 74 No.1 (2005) 267-270.
  116. T. Vuletić, T. Ivek, B. Korin-Hamzić, S. Tomić, B. Gorshunov, P. Haas, and M. Dressel, J. Akimitsu, T. Sasaki, and T. Nagata: Anisotropic charge modulation in ladder planes of Sr14-xCaxCu24O41, Phys. Rev. B 71 (2005) 012508-01-04.
  117. K. Kawashima, A. Kawano, T. Muranaka and J. Akimitsu: Superconductivity in Intermetallic W7Re13X (X=B and C) Compounds, J. Phys. Soc. Jpn. 74 No.2 (2005) 700-704.
  118. Y. Zenitani, T. Suzuki, H. Kawashima and J. Akimitsu: Superconducting phase diagram in Ca2-xNaxCuO2Cl2-yBry, Physica C 419 1-2 (2005) 32-40.
  119. H. Ichikawa, L. Kano, M. Saitoh, S. Miyahara, N. Furukawa, J. Akimitsu, T. Yokoo, T. Matsumura, M. Takeda and K. Hirota: Orbital Ordering in Ferromagnetic Lu2V2O7, J. Phys. Soc. Jpn. 74 No.3 (2005) 1020-1025.
  120. T. Muranaka, Y. Zenitani, J. Shimoyama and J. Akimitsu: Superconductivity in MgB2, ”Frontiers in Superconducting Materials” (2005) pp.937-981 Springer edited by A. Narlikar.
  121. M. Uehara, N. Motoyama, M. Matsuda, H. Eisaki and J. Akimitsu: Superconductivity and magnetism in ladder and chain compounds -Physics of (Sr,Ca)14Cu24O41- ”Frontiers in Magnetic Materials” (2005) pp.573-609 Springer edited by A. Narlikar.
  122. Y. Xue, S. Asada, H. Hosomichi, S. Naher, J. Xue, H. Kaneko, H. Suzuki, T. Muranaka and J. Akimitsu: X-ray diffraction study of MgB2 at low temperature, J. Low Temp. Phys. 138 Nos.5/6 (2005) 1105.
  123. T. Kiyama, H. Saitoh, M. Itoh, K. Kodama, H. Ichikawa and J. Akimitsu: Orbital Fluctuations in Ground State of YTiO3: 47,49Ti NMR Study, J. Phys. Soc. Jpn. 74 No.4 (2005) 1123-1126.
  124. H. Takagiwa, S. Kuroiwa, M. Yamazawa, J. Akimitsu, K. Ohishi, A. Koda, W. Higemoto and R. Kadono: Correlation between Superconducting Carrier Density and Transition Temperature in NbB2+x, J. Phys. Soc. Jpn. 74 No.5 (2005) 1386-1389.
  125. T. Ekino, A.M. Gabovich, Mai Suan Li, T. Takasaki, A.I. Voitenko, J. Akimitsu, H. Fujii, T. Muranaka, M. Pe,kala and H. Szymczak: Manifestations of inhomogeneity in MgB2: from specific heat to tunnel measurements, Physica B 359-361 (2005) 460-462.
  126. N. Ogita, S. Nagai, M. Udagawa, F. Iga, M. Sera, T. Oguchi, J. Akimitsu and S. Kunii: Raman scattering study of rare-earth hexaboride, Physica B 359-361 (2005) 941-943.
  127. Y. Zenitani, H. Kawashima, T. Suzuki, J. Akimitsu, N. Ogita, T. Kondo and M. Udagawa: Infrared Absorption Study of Ca2-xNaxCuO2X2 (X = Cl, Br), J. Phys. Soc. Jpn. 74 No.6 (2005) 1877-1878.
  128. T. Sasaki, M. Mizumaki, K. Kato, Y. Watabe, Y. Nishihata, M. Takata and J. Akimitsu: Observation of Phase Transition with Lattice Distortion in the Low-dimensional Quantum Spin System TiOBr by Synchrotron X-ray Diffraction - Evidence of Spin-Peierls Transition ? -, J. Phys. Soc. Jpn. 74 No.8 (2005) 2185-2188.
  129. T. Takasaki, T. Ekino, R. A. Ribeirob, T. Muranaka, H. Fujii and J. Akimitsu: Point-contact spectroscopy measurements of binary superconductor MgB2, Physica C 426-431 (2005) 300-303.
  130. K. Kobayashi, Y. Zenitani and J. Akimitsu: First-principles study of C6B2, Physica C 426-431 (2005) 374-380.
  131. R.A. Ribeiro, T. Ekino, T. Takasaki, T. Takabatake and J. Akimitsu: Break-junction tunneling spectra of MgB2: Influence of boron quality, Physica C 426-431 (2005) 450-453.
  132. J. Akimitsu, S. Akutagawa, K. Kawashima and T. Muranaka: Superconductivity in MgB2 and Its Related Materials Prog. Theor. Phys., Supplement No. 159 (2005) 326-337.