KINDAI UNIVERSITY


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MASUI Takahiko

Profile

FacultyDepartment of Science / Graduate School of Science and Engineering Research
PositionAssociate Professor
Degree
Commentator Guidehttps://www.kindai.ac.jp/meikan/303-masui-takahiko.html
URL
Mail
Last Updated :2020/04/03

Research Activities

Research Interests

  • solid state physics, superconductivity

Published Papers

  • Quantitative Comparison between Electronic Raman Scattering and Angle-Resolved Photoemission Spectra in Bi$_2$Sr$_2$CaCu$_2$O$_{8+\delta}$ Superconductors: Doping Dependence of Nodal and Antinodal Superconducting Gaps, Kiyohisa Tanaka, NguyenTrung Hieu, Giulio Vincini, Takahiko Masui, Shigeki Miyasaka, Setsuko Tajima, Takao Sasagawa, Journal of the Physical Society of Japan, Journal of the Physical Society of Japan, 88(4), 044710-1 - 044710-6, Apr. 2019 , Refereed
  • Buried double CuO chains in YBa$_2$Cu$_4$O$_8$ uncovered by nano-ARPES, Hideaki Iwasawa, Pavel Dudin, Kyosuke Inui, Takahiko Masui, Timur K. Kim, Cephise Cacho, Moritz Hoesch, Physical Review B, Physical Review B, 99(14), 140510(R)-1 - 140510(R)-6, Apr. 2019 , Refereed
  • Surface termination and electronic reconstruction in YBa$_2$Cu$_3$O$_{7-\delta}$, H. Iwasawa, N. B, M. Schroter, T. Masui, S Tajima, T. K. Kim, M Hoesch, Physical Review B, Physical Review B, 98(8), 081112(R)-1 - 081112(R)-6, Aug. 2018 , Refereed
  • Enhancement of ferromagnetism by oxygen isotope substitution in strontium ruthenate SrRuO$_3$, Hirofumi Kawanaka, Yoshihiro Aiura, Takayuki Hasebe, Makoto Yokoyama, Takahiko Masui, Yoshikazu Nishihara, Takashi Yanagisawa, Scientific Reports, Scientific Reports, 6, 35150-1 - 35150-6, Oct. 2016 , Refereed
  • Electronic Raman scattering on out-of-plane disordered Bi$_2$Sr$_2$CaCu$_2$O$_{8+\delta}$: How the pseudogap affects the superconducting Raman response, N. Murai, T. Masui, M. Ishikado, S. Ishida, H. Eisaki, S. Uchida, S. Tajima, Physical Review B, Physical Review B, 91(21), 214520-1 - 214520-6, Jun. 2015 , Refereed
  • Absence of the 1/8 -anomaly in oxygen isotope effect on YBa$_2$Cu$_3$O$_y$, K. Kamiya, T. Masui, S. Tajima, H. Bando, Y. Aiura, Physical Review B, Physical Review B, 89(6), 060505(R)-1 - 060505(R)-4, Feb. 2014 , Refereed
  • Coexistence of the Pseudogap and superconducting Gap Revealed by the $c$-axis Optical Study of YBa$_2$(Cu$_{1-x}$Zn$_x$)$_3$O$_{7-\delta}$, E. Uykur, K. Tanaka, T. Masui, S. Miyasaka, S. Tajima, Journal of the Physical Society of Japan, Journal of the Physical Society of Japan, 82(3), 033701-1 - 033701-4, Feb. 2013 , Refereed
  • Precursor superconductivity and superconducting fluctuation regime revealed by the c-axis optical spectra of Yba$_2$(Cu$_{1-x}$Zn$_x$)$_3$O$_y$, E. Uykur, K. Tanaka, T. Masui, S. Miyasaka, S. Tajima, Physics Procedia, Physics Procedia, 45, 45 - 48, 2013 , Refereed
  • Quantitative comparison between electronic Raman spectra and angle-resolved photoemission spectra in superconducting state of Bi2212, N.T. Hieu, K. Tanaka, T. Masui, S. Miyasaka, S. Tajima, T. Sasagawa, Physics Procedia, Physics Procedia, 45, 41 - 44, 2013 , Refereed
  • Superconducting gap structure in out-of-plane-disordered Bi$_2$Sr$_2$CaCu$_2$O$_{8+\delta}$ as studied by Raman spectroscopy, N. Murai, T. Masui, M. Ishikado, S. Ishida, H. Eisaki, S. Uchida, S. Tajima, Physics Procedia, Physics Procedia, 45, 37 - 40, 2013 , Refereed
  • Pseudogap study Usuing $c$-axis optical spectra of underdoped YBa$_2$Cu$_3$O$_{7-\delta}$, E. Uykur, T. Masui, K. Tanaka, S. Miyasaka, S. Tajima, Journal of the Physical Society of Japan, Journal of the Physical Society of Japan, 81, SB035-1 - SB035-4, Jan. 2012 , Refereed
  • Disorder-induced change of gap anisotropy in Bi$_{2+x}$Sr$_{2-x}$CaCu$_2$O$_{8+\delta}$ studied by Raman spectroscopy, N. Murai, T. Masui, M. Ishikado, S. Ishida, H. Eisaki, S. Uchida, S. Tajima, Journal of the Physical Society of Japan, Journal of the Physical Society of Japan, 81, SB033-1 - SB033-4, Jan. 2012 , Refereed
  • Effect of out-of-plane disorder on superconducting gap anisotropy in Bi$_{2+x}$Sr$_{2-x}$CaCu$_2$O$_{8+\delta}$ as seen via Raman spectroscopy, N. Murai, T. Masui, M. Ishikado, S. Ishida, H. Eisaki, S. Uchida, S. Tajima, Physical Review B, Physical Review B, 85(2), 20507(R)-1 - 20507(R)-4, Jan. 2012 , Refereed
  • Intrinsic gapless superconductivity in overdoped (Y,Ca)Ba$_2$Cu$_3$O$_y$: Study of in-plane optical spectra, E. Uykur, K. Tanaka, T. Masui, S. Miyasaka, S. Tajima, Physica C, Physica C, 471(21-22), 701 - 703, Nov. 2011 , Refereed
  • In-plane optical spectra of Y$_{1-x}$Ca$_x$Ba$_2$Cu$_3$O$_{7-\delta}$: Overdoping and disorder effects on residual conductivity, E. Uykur, K. Tanaka, T. Masui, S. Miyasaka, S. Tajima, Physical Review B, Physical Review B, 84(18), 184527-1 - 184527-7, Nov. 2011 , Refereed
  • Temperature dependence of the vortex remanent state in high-Tc superconductors, Rongchao Ma, K. H. Chow, J. Jung, D. Prabhakaran, H. Tadatomo, T. Masui, S. Tajima, Physical Review B, Physical Review B, 83(21), 212504-1 - 212504-4, Jun. 2011 , Refereed
  • Bulk-sensitive laser-ARPES study on the cuprate superconductor YBa$_2$Cu$_3$O$_{7-\delta}$, M. Okawa, K. Ishizaka, H. Uchiyama, H. Tadatomo, T. Masui, S. Tajima, X.-Y. Wang, C.-T. Chen, S. Watanabe, A. Chainani, T. Saitoh, S. Shin, Physica C, Physica C, 470(Supplement 1), S62 - S64, Dec. 2010 , Refereed
  • Oxygen isotope effect in optimally doped Bi$_2$Sr$_2$CaCu$_2$O$_{8+\delta}$ studied by low-energy ARPES, H. Iwasawa, J.F. Douglas, K. Sato, T. Masui, Y. Yoshida, Z. Sun, H. Eisaki, H. Bando, A. Ino, M. Arita, K. Shimada, H. Namatame, M. Taniguchi, S. Tajima, S. Uchida, T. Saitoh, D.S. Dessau, Y. Aiura, Physica C, Physica C, 470(Supplement 1), S134 - S136, Dec. 2010 , Refereed
  • Pressure effect on transport and superconducting properties of imuprity substituted MgB$_2$ single crystals, T. Masui, Y. Mikasa, S. Lee, S. Tajima, Physica C, Physica C, 470(Supplement 1), S627 - S628, Dec. 2010 , Refereed
  • Electronic Raman spectra of slightly underdoped YBa$_2$Cu$_3$O$_{7-\delta}$: Unusual behavior of antinodal electrons, H. Tadatomo, T. Masui, S. Tajima, Physical Review B, Physical Review B, 82(22), 224503-1 - 224503-5, Dec. 2010
  • Pressure Effects on Two-Band Conduction and Superconductivity in C- and Al-Substituted MgB$_2$ single crystals, T. Masui, Y. Mikasa, S. Lee, S. Tajima, Journal of the Physical Society of Japan, Journal of the Physical Society of Japan, 79(7), 074719-1 - 074719-5, Jul. 2010
  • Enhancement of oxygen isotope effect due to out-of-plane disorder in Bi$_2$Sr$_2$Ln$_{0.4}$CuO$_{6+\delta}$ superconductors, K. Sato, H. Iwasawa, N. C. Plumb, T. Masui, Y. Yoshida, H. Eisaki, H. Bando, A. Ino, M. Arita, K. Shimada, H. Namatame, M. Taniguchi, S. Tajima, Y. Nishihara, D. S. Dessau, Y. Aiura, Physical Review B, Physical Review B, 80(21), 212501-1 - 212501-4, Dec. 2009 , Refereed
  • Superconducting electronic state in optimally doped YBa$_2$Cu$_3$O$_{7-\delta}$ observed with laser-excited angle-resolved photoemission spectroscop, M. Okawa, K. Ishizaka, H. Uchiyama, H. Tadatomo, T. Masui, S. Tajima, X.-Y. Wang, C.-T. Chen, S. Watanabe, A. Chainani, T. Saitoh, S. Shin, Physical Review B, Physical Review B, 79(14), 144528-1 - 144528-9, Apr. 2009 , Refereed
  • Crossover between magnetic vortex attraction and repulsion in thin films of layered superconductors, A. I. Buzdin, A. S. Mel'nikov, A. V. Samokhvalov, T. Akashi, T. Masui, T. Matsuda, S. Tajima, H. Tadatomo, A. Tonomura, Physical Review B, Physical Review B, 79(9), 094510-1 - 094510-5, Mar. 2009 , Refereed
  • Resistivity, magnetic susceptibility and specific heat studies in superconductor LaFePO$_{1-x}$F$_x$, S. Miyasaka, S. Suzuki, S. Saijo, Y. Mikasa, T. Masui, S. Tajima, Journal of Physics: Conference Series, Journal of Physics: Conference Series, 150(5), 052164-1 - 052164-4, 2009 , Refereed
  • Overdoping effect on pair breaking peak energy in the electronic Raman spectra of high-Tc cuprate superconductors, T. Masui, K. Nishikawa, T. Hiramachi, S. Tajima, H. Eisaki, H. Kito, A. Iyo, Journal of Physics: Conference Series, Journal of Physics: Conference Series, 150(5), 052153-1 - 052153-4, 2009 , Refereed
  • The change of anisotropy by Zn or Ca substitution in YBCO single crystals, T. Masui, Y. Uraike, K. Nagasao, S. Tajima, Journal of Physics: Conference Series, Journal of Physics: Conference Series, 150(5), 052152-1 - 052152-4, 2009 , Refereed
  • Electronic crossover in the overdoped high-temperature (Y,Ca)Ba$_2$Cu$_3$O$_y$ superconductor by Raman scattering, T. Masui, T. Hiramachi, K. Nagasao, S Tajima, Physical Review B, Physical Review B, 79(1), 014511-1 - 014511-6, Jan. 2009 , Refereed
  • Momentum-resolved charge excitations in high-Tc cuprates studied by resonant inelastic X-ray scattering, K. Ishii, M. Hoesch, T. Inami, K. Kuzushita, K. Ohwada, M. Tsubota, Y. Murakami, J. Mizuki, Y. Endoh, K. Tsutsui, T. Tohyama, S. Maekawa, K. Yamada, T. Masui, S. Tajima, H. Kawashima, J. Akimitsu, Journal of Physics and Chemistry of Solids, Journal of Physics and Chemistry of Solids, 69(12), 3118 - 3124, Dec. 2008 , Refereed
  • First study of the B$_{1g}$ buckling phonon mode in optimally doped, de-twinned, YBa$_2$Cu$_3$O$_{7-\delta}$ by inelastic X-ray scattering, A. Q. R. Baron, J. P. Sutter, S. Tsutsui, H. Uchiyama, T. Masui, S. Tajima, R. Heid, K-.P. Bohnen, Journal of Physics and Chemistry of Solids, Journal of Physics and Chemistry of Solids, 69(12), 3100 - 3102, Dec. 2008 , Refereed
  • Superconducting gap of overdoped Tl$_2$Ba$_2$CuO$_{6+\delta}$ observed by Raman scattering, K. Nishikawa, T. Masui, S. Tajima, H. Eisaki, H. Kito, A. Iyo, Journal of Physics and Chemistry of Solids, Journal of Physics and Chemistry of Solids, 69(12), 3074 - 3077, Dec. 2008 , Refereed
  • Isotopic Fingerprint of Electron-Phonon Coupling in High-Tc Cuprates, H. Iwasawa, J.F. Douglas, K. Sato, T. Masui, Y. Yoshida, Z. Sun, H. Eisaki, H. Bando, A. Ino, M. Arita, K. Shimada, H. Namatame, M. Taniguchi, S. Tajima, S. Uchida, T. Saitoh, D.S. Dessau, Y. Aiura, Physical Review Letters, Physical Review Letters, 101(15), 157005-1 - 157005-4, Oct. 2008 , Refereed
  • Local-moment fluctuations in the optimally doped high-Tc superconductor YBa$_2$Cu$_3$O$_{6.95}$, D. Reznik, J.-P. Ismer, I. Eremin, L. Pintschovius, T. Wolf, M. Arai, Y. Endoh, T. Masui, S Tajima, Physical Review B, Physical Review B, 78(13), 132503-1 - 132503-4, Oct. 2008 , Refereed
  • Rapid change of electronic anisotropy in overdoped (Y,Ca)Ba$_2$Cu$_3$O$_{7-\delta}$, K. Nagasao, T. Masui, S. Tajima, Physica C, Physica C, 468(15-20), 1188 - 1191, Sep. 2008 , Refereed
  • Temperature dependence of the bond-stretching phonon anomaly in YBa$_2$Cu$_3$O$_{6.95}$, D. Reznik, L. Pintschovius, J. M. Tranquada, M. Arai, Y. Endoh, T. Masui, S Tajima, Physical Review B, Physical Review B, 78(9), 094507-1 - 094507-7, Sep. 2008 , Refereed
  • Mn Substitution Effect in Two-Gap Superconductor MgB$_2$, T. Masui, N. Suemitsu, Y. Mikasa, S. Lee, S. Tajima, Journal of the Physical Society of Japan, Journal of the Physical Society of Japan, 77(7), 074720-1 - 074720-5, Jul. 2008 , Refereed
  • Multiple Gap Symmetries for the Order Parameter of Cuprate Superconductors from Penetration Depth Measurements, R. Khasanov, S. Strassle, D. Di Castro, T. Masui, S. Miyasaka, S. Tajima, A. Bussmann-Holder, H. Keller, Physical Review Letters, Physical Review Letters, 99(23), 237601-1 - 237601-4, Dec. 2007 , Refereed
  • Polarization dependence of the electronic Raman spectra of Ca-substituted YBCO single crystals: As a probe of s-wave mixing in the superconducting gap", T. Hiramachi, T. Masui, S. Tajima, Physica C, Physica C, 463-465, 89 - 92, Oct. 2007 , Refereed
  • A re-examination of the oxygen isotope effect in ARPES spectra of Bi2212, H. Iwasawa, Y. Aiura, T. Saitoh, H. Eisaki, H. Bando, A. Ino, M. Arita, K. Shimada, H. Namatame, M. Taniguchi, T. Masui, S. Tajima, M. Ishikado, K. Fujita, S. Uchida, J. F. Douglas, Z. Sun, D. S. Dessau, Physica C, Physica C, 463-465, 52 - 55, Oct. 2007 , Refereed
  • Impurity effects on superconductivity and anisotropy in MgB$_2$, S. Tajima, T. Masui, N. Suemitsu, S. Lee, T. Kakeshita, Physica C, Physica C, 460-462(Part 1), 74 - 77, Sep. 2007 , Refereed
  • Transport properties and Raman spectra of impurity substituted MgB$_2$, T. Masui, Physica C, Physica C, 456(1-2), 102 - 107, Jun. 2007 , Refereed
  • Superconductors: Unusual oxygen isotope effects in cuprates, J. F. Douglas, H. Iwasawa, Z. Sun, A. V. Fedorov, M. Ishikado, T. Saitoh, H. Eisaki, H. Bando, T. Iwase, A. Ino, M. Arita, K. Shimada, H. Namatame, M. Taniguchi, T. Masui, S. Tajima, K. Fujita, S. Uchida, Y. Aiura, D. S. Dessau, Nature, Nature, 446, E5, Mar. 2007 , Refereed
  • Superfluid Density and Residual Conductivity in Optical Spectra of YBCO, T. Kakeshita, T. Masui, S. Tajima, AIP Conference Proceedings, AIP Conference Proceedings, 850(1), 449 - 450, Dec. 2006 , Refereed
  • Momentum Dependence of Mott Gap Excitations in Optimally Doped YBa$_2$Cu$_3$O$_{7-\delta}$ Studied by Resonant Inelastic X-ray Scattering, K. Ishii, K. Tsutsui, Y. Endoh, T. Tohyama, K. Kuzushita, T. Inami, K. Ohwada, S. Maekawa, T. Masui, S. Tajima, Y. Murakami, J. Mizuki, AIP Conference Proceedings, AIP Conference Proceedings, 850(1), 445 - 446, Dec. 2006 , Refereed
  • Mn-substitution effect on superconducting properties of MgB$_2$ single crystals, N. Suemitsu, T. Masui, S. Lee, S. Tajima, Physica C, Physica C, 445-448, 39 - 41, Oct. 2006 , Refereed
  • Interplay of electron-lattice interactions and superconductivity in Bi$_2$Sr$_2$CaCu$_2$O$_{8+\delta}$, Jinho Lee, K. Fujita, K. McElroy, J. A. Slezak, M. Wang, Y. Aiura, H. Bando, M. Ishikado, T. Masui, J.-X. Zhu, A. V. Balatsky, H. Eisaki, S. Uchida, J. C. Davis, Nature, Nature, 442, 546 - 550, Aug. 2006 , Refereed
  • Spin Gap in Optimally-doped YBCO, D. Reznik, L. Pintschovius, Y. Endoh, P. Bourges, Y. Sisis, T. Masui, S. Tajima, Journal of Physics and Chemistry of Solids, Journal of Physics and Chemistry of Solids, 67(1-3), 509 - 510, Mar. 2006 , Refereed
  • On the origin of the double superconducting transition in overdoped YBa$_2$Cu$_3$O$_x$, R. Lortz, T. Tomita, Y. Wang, A. Junod, J.S. Schilling, T. Masui, S. Tajima, Physica C, Physica C, 434(2), 194 - 198, Feb. 2006 , Refereed
  • Negative Quantum Interference between the Electronic Raman scattering Processes of CuO Chains and CuO$_2$ Planes of Heavily Overdoped (Y,Ca)Ba$_2$Cu$_3$O$_{7-\delta}$, T. Masui, M. Limonov, H. Uchiyama, S.Tajima, A. Yamanaka, Physical Review Letters, Physical Review Letters, 95(20), 207001-1 - 207001-4, Nov. 2005 , Refereed
  • In-plane charge dynamics in underdoped YBCO, T. Kakeshita, T. Masui, S. Tajima, Physica C, Physica C, 426-431(Part 1), 184 - 188, Oct. 2005 , Refereed
  • Irreversibility field and coherence length of Ca-substituted YBCO single crystals, T. Masui, E. Ohmichi, S. Tajima, T. Osada, Physica C, Physica C, 426-431(Part 1), 335 - 339, Oct. 2005 , Refereed
  • Muon spin relaxation studies of magnetic-field-induced effects in high-Tc superconductors, A.T. Savici, A. Fukaya, I.M. Gat-Malureanu, T. Ito, P.L. Russo, Y.J. Uemura, C.R. Wiebe, P.P. Kyriakou, G.J. MacDougall, M.T. Rovers, G.M. Luke, K.M. Kojima, M. Goto, S. Uchida, R. Kadono, K. Yamada, S. Tajima, T. Masui, H. Eisaki, N. Kaneko, M. Greven, G.D. Gu, Physical Review Letters, Physical Review Letters, 95(15), 157001-1 - 157001-4, Oct. 2005 , Refereed
  • Evolution of the specific-heat anomaly of the high-temperature superconductor YBa$_2$Cu$_3$O$_7$ under influence of doping through application of pressure up to 10 GPa, Rolf Lortz, Alain Junod, Didier Jaccard, Yuxing Wang, Christoph Meingast, Takahiko Masui, Setsuko Tajima, Journal of Physics: Condensed Matter, Journal of Physics: Condensed Matter, 17(26), 4135 - 4145, Jun. 2005 , Refereed
  • Mott gap excitations in twin-free YBa$_2$Cu$_3$O$_{7-\delta}$ (Tc=93 K) studied by RIXS, K. Ishii, K. Tsusui, Y. Endoh, T. Tohyama, K. Kuzushita, T. Inami, K. Ohwada, S. Maekawa, T. Masui, S. Tajima, Y. Murakami, J. Mizuki, Physical Review Letters, Physical Review Letters, 94(18), 187002-1 - 187002-4, May 2005 , Refereed
  • Superconductivity-induced phonon effects in high-temperature superconductors: Raman study, M. Limonov, S. Lee, T. Masui, H. Uchiyama, S. Tajima, A. Yamanaka, physica status solidi (c), physica status solidi (c), 1(11), 3077 - 3080, Nov. 2004 , Refereed
  • Dispersion of magnetic excitations in optimally doped superconducting YBa$_2$Cu$_3$O6.95, D. Reznik, P. Bourges, L. Pintschovius, Y. Endoh, Y. Sidis, T. Masui, S. Tajima, Physical Review Letters, Physical Review Letters, 93(20), 207003-1 - 207003-4, Nov. 2004 , Refereed
  • An improved model of superconducting vortices in layered materials for transmission electron microscopy, M. Beleggia, G. Pozzi, A. Tonomura, H. Kasai, T. Matsuda, K. Harada, T. Akashi, T. Masui, S Tajima, Physical Review B, Physical Review B, 70(18), 184518-1 - 184518-8, Nov. 2004 , Refereed
  • Carbon-substituted effect on vortex order-disorder transition in MgB$_2$ single crystals, E. Ohmichi, E. Komatsu, T. Masui, S. Lee, S. Tajima, T. Osada, Physical Review B, Physical Review B, 70(17), 174513-1 - 174513-5, Nov. 2004 , Refereed
  • Carbon-Substitution Effect on Superconducting Properties in MgB$_2$ Single Crystals, T. Masui, S. Lee, A. Yamamoto, H. Uchiyama, S. Tajima, Physica C, Physica C, 412-414(Part 1), 303 - 306, Oct. 2004 , Refereed
  • The effect of Zn-substitution and Carrier doping on Vortex Pinning in YBa$_2$Cu$_3$O$_{7-\delta}$ Single Crystals, T. Masui, Y. Takano, K. Yoshida, K. Kajita, S. Tajima, Physica C, Physica C, 412-414(Part 1), 515 - 520, Oct. 2004 , Refereed
  • Neutron scattering study of charge fluctuations and spin fluctuations in optimally doped YBa$_2$Cu$_3$O$_{6.95}$, L. Pintschovius, Y. Endoh, D. Reznik, H. Hiraka, J. Tranquada, W. Reichardt, P. Bourges, Y. Sidis, H. Uchiyama, T. Masui, S. Tajima, Physica C, Physica C, 412-414(Part 1), 70 - 75, Oct. 2004 , Refereed
  • Crystal growth of C-doped MgB$_2$ superconductors: accidental doping and inhomogeneity, S. Lee, T. Masui, A. Yamamoto, H. Uchiyama, S. Tajima, Physica C, Physica C, 412-414(Part 1), 31 - 35, Oct. 2004 , Refereed
  • Enhancement of the irreversibility field by carbon substitution in single crystal MgB$_2$, E. Ohmichi, T. Masui, S. Lee, S. Tajima, T. Osada, Journal of the Physical Society of Japan, Journal of the Physical Society of Japan, 73(8), 2065 - 2068, Aug. 2004 , Refereed
  • Carbon-substitution effect on the electronic properties of MgB$_2$ single crystals, T. Masui, S. Lee, S. Tajima, Physical Review B, Physical Review B, 70(2), 024504-1 - 024504-7, Jul. 2004 , Refereed
  • Oxygen Phonon Branches in YBa$_2$Cu$_3$O$_7$, L. Pintschovius, D. Reznik, W. Reichardt, Y. Endoh, H. Hiraka, J. M. Tranquada, H. Uchiyama, T. Masui, S. Tajima, Physical Review B, Physical Review B, 69(21), 214506-1 - 214506-11, Jun. 2004 , Refereed
  • Effect of the growing process on the electronic properties of MgB$_2$ single crystals, T. Masui, S. Lee, S. Tajima, Physica C, Physica C, 392-396(Part 1), 281 - 285, Oct. 2003 , Refereed
  • Electronic Raman scattering in heavily overdoped (Y,Ca)Ba$_2$Cu$_3$O$_{7-\delta}$ crystals, M. Limonov, T. Masui, H. Uchiyama, S. Lee, S. Tajima, A. Yamanaka, Physica C, Physica C, 392-396(Part 1), 53 - 56, Oct. 2003 , Refereed
  • Carbon-substituted MgB$_2$ single crystals, S. Lee, T. Masui, A. Yamamoto, H. Uchiyama, S. Tajima, Physica C, Physica C, 397, 7 - 13, Oct. 2003 , Refereed
  • Raman study of carrier-overdoping effects on the gap in high-Tc superconducting cuprates, T. Masui, M. Limonov, H. Uchiyama, S. Lee, S.Tajima, A. Yamanaka, Physical Review B, Physical Review B, 68(6), 060506(R)-1 - 060506(R)-4, Aug. 2003 , Refereed
  • Anisotropic Electrical Transport in MgB$_2$ Single Crystals, Y. Eltsev, K. Nakao, S. Lee, T. Masui, N. Chikumoto, S. Tajima, N. Koshizuka, M. Murakami, Journal of Low Temperature Physics, Journal of Low Temperature Physics, 131(5-6), 1069 - 1073, Jun. 2003 , Refereed
  • Oxygen Phonon Branches in detwinned YBa$_2$Cu$_3$O$_7$, D. Reznik, L. Pintschovius, W. Reichardt, Y. Endoh, H. Hiraka, J. M. Tranquada, S. Tajima, H. Uchiyama, T. Masui, Journal of Low Temperature Physics, Journal of Low Temperature Physics, 131(3-4), 417 - 421, May 2003 , Refereed
  • Gap observation in the photoemission spectra of (Y,Ca)Ba$_2$Cu$_3$O$_{7-\delta}$ with little surface effect, H. Uchiyama, T. Masui, S. Tajima, Journal of Low Temperature Physics, Journal of Low Temperature Physics, 131(3-4), 287 - 291, May 2003 , Refereed
  • Magnetic and electrical properties of single-crystal La${2-x}$Sr$_x$Cu$_{1-y}$Ni$_y$O$_4$, N. Watanabe, T. Masui, Y. Itoh, T. Machi, I. Kato, N. Koshizuka, M. Murakami, Physica C, Physica C, 388-389, 241 - 242, May 2003 , Refereed
  • Experimental study of electron-phonon interaction in MgB$_2$, S. Tajima, T. Masui, J. Quilty, S. Lee, A. Yamamoto, A. Yamanaka, Physica C, Physica C, 388-389, 103 - 104, May 2003 , Refereed
  • Normal state transport properties of MgB$_2$, T. Masui, S. Tajima, Physica C, Physica C, 385(1-2), 91 - 97, Mar. 2003 , Refereed
  • Crystal growth and characterization of MgB$_2$ : the relation between structural and superconducting properties, S. Lee, T. Masui, H. Mori, Yu. Eltsev, A. Yamamoto, S. Tajima, Superconductor Science and Technology, Superconductor Science and Technology, 16(2), 213 - 220, Jan. 2003 , Refereed
  • Origin of superconductivity transition broadening in MgB$_2$, T. Masui, S. Lee, S. Tajima, Physica C, Physica C, 383(4), 299 - 305, Jan. 2003 , Refereed
  • High-pressure synthesis of superconducting Nb$_{1-x}$B$_2$ (x=0-0.48) with the maximum Tc=9.2 K, A. Yamamoto, C. Takao, T. Masui, M. Izumi, S. Tajima, Physica C, Physica C, 383(3), 197 - 206, Dec. 2002 , Refereed
  • Anisoropic resistivity and Hall effect in MgB$_2$ single crystals, Y. Eltsev, K. Nakao, S. Lee, T. Masui, N. Chikumoto, S. Tajima, N. Koshizuka, M. Murakami, Physical Review B, Physical Review B, 66(18), 180504(R)-1 - 180504(R)-4, Nov. 2002 , Refereed
  • Magnetic and electrical properties of single-crystal La$_{1.99}$Sr$_{0.01}$Cu$_{1-y}$Ni$_y$O$_4$, N. Watanabe, T. Masui, Y. Itoh, I. Kato, T. Machi, N. Koshizuka, M. Murakami, Journal of Superconductivity, Journal of Superconductivity, 15(5), 451 - 454, Oct. 2002 , Refereed
  • Single crystals of MgB$_2$ superconductor grown under high-pressure in Mg-B-N system, S. Lee, A. Yamamoto, H. Mori, Yu. Eltsev, T. Masui, S. Tajima, Physica C, Physica C, 378-381(Part 1), 33 - 37, Oct. 2002 , Refereed
  • Transport properties of MgB$_2$ single-crystal, T. Masui, S. Lee, A. Yamamoto, S. Tajima, Physica C, Physica C, 378-381(Part 1), 216 - 219, Oct. 2002 , Refereed
  • Electronic State of MgB$_2$ Superconductor, S. Tajima, T. Masui, H. Uchiyama, J. W. Quilty, Y. Eltsev, S. Lee, A. Yamamoto, H. Mori, Current Applied Physics, Current Applied Physics, 2(4), 315 - 319, Aug. 2002 , Refereed
  • Phonon contribution to the transport properties of single-crystal MgB$_2$, T. Masui, K. Yoshida, S. Lee, A. Yamamoto, S. Tajima, Physical Review B, Physical Review B, 65(21), 214513-1 - 214513-4, May 2002 , Refereed
  • Observation of Structures of Chain Vortices Inside Anisotropic High-Tc Superconductors, A. Tonomura, H. Kasai, O. Kamimura, T. Matsuda, K. Harada, T. Yoshida, T. Akashi, J. Shimoyama, K. Kishio, T. Hanaguri, K. Kitazawa, T. Masui, S. Tajima, N. Koshizuka, P. L. Gammel, D. Bishop, M. Sasase, S. Okayasu, Physical Review Letters, Physical Review Letters, 88(23), 237001-1 - 237001-4, May 2002 , Refereed
  • Zn/Ni substitution effects on vortex states of underdoped YBa$_2$Cu$_3$O$_y$, T. Masui, S. Tajima, Physica C, Physica C, 357-360(Part 1), 39 - 41, Sep. 2001 , Refereed
  • Growth, Structure Analysis and Anisotropic Superconducting Properties of MgB$_2$ single Crystals, S. Lee, H. Mori, T. Masui, Y. Eltsev, A. Yamamoto, S. Tajima, Journal of the Physical Society of Japan, Journal of the Physical Society of Japan, 70(8), 2255 - 2258, Aug. 2001 , Refereed
  • Spin gap behavior and electronic phase separation in doped polyacetylene, T. Masui, T. Ishiguro, Synthetic Metals, Synthetic Metals, 117, 15 - 19, Feb. 2001 , Refereed
  • Zn/Ni-substitution effects on out-of-plane resistivity and coherence length in YBa$_2$Cu$_3$O$_{7-\delta}$, T. Masui, K. Tomimoto, S. Tajima, Advances in Superconductivity, Advances in Superconductivity, 12, 221 - 223, 2000 , Refereed
  • Spin Susceptibility and Its Relationship to Structure in Perchlorate Doped Polyacetylene in the Intermediate Dopant-Concentration Region, T. Masui, T. Ishiguro, J. Tsukamoto, Synthetic Metals, Synthetic Metals, 104(3), 179 - 188, Jul. 1999 , Refereed
  • Spin-gap like behavior observed in intermediately doped polyacetylene, T. Masui, T. Ishiguro, J. Tsukamoto, Synthetic Metals, Synthetic Metals, 101(1-3), 347 - 348, May 1999 , Refereed
  • Spin-gap in Perchlorate-doped trans-Polyacetylene, T. Masui, T. Ishiguro, J. Tsukamoto, Physical Review Letters, Physical Review Letters, 82(10), 2151 - 2154, Mar. 1999 , Refereed
  • Effect of magnetic dopant on the metallic conductance of polyacetylene at low temperature, T. Masui, T. Ishiguro, J. Tsukamoto, Physical Review B, Physical Review B, 58(8), 4352 - 4361, Aug. 1998 , Refereed
  • ESR study of intermediately doped polyacetylene, T. Masui, T. Ishiguro, J. Tsukamoto, Synthetic Metals, Synthetic Metals, 84(1-3), 867 - 868, Jan. 1997 , Refereed
  • Low-temperature Hall effect and thermoelectric power in metallic PF$_6$-doped polypyrrole, Taliq Hasan Gilani, T. Masui, Gennady Yu. Logvenov, T. Ishiguro, Synthetic Metals, Synthetic Metals, 78(3), 327 - 331, Apr. 1996 , Refereed