Mechanism of High-Temperature Superconductivity in Correlated-Electron Systems

被引:14
作者
Yanagisawa, Takashi [1 ]
机构
[1] Natl Inst Adv Ind Sci & Technol, 1-1-1 Umezono, Tsukuba, Ibaraki 3058568, Japan
关键词
strongly correlated electron systems; mechanisms of superconductivity; high-temperature superconductivity; kinetic driven superconductivity; optimization variational Monte Carlo method; Hubbard model; three-band d-p model; VARIATIONAL MONTE-CARLO; HIGH-TC SUPERCONDUCTIVITY; VAN-ALPHEN OSCILLATION; 2-DIMENSIONAL HUBBARD; TRANSITION-TEMPERATURE; PAIRING CORRELATIONS; DOPING DEPENDENCE; QUANTUM STRIPES; FERMI-SURFACE; WAVE-FUNCTION;
D O I
10.3390/condmat4020057
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
It is very important to elucidate the mechanism of superconductivity for achieving room temperature superconductivity. In the first half of this paper, we give a brief review on mechanisms of superconductivity in many-electron systems. We believe that high-temperature superconductivity may occur in a system with interaction of large-energy scale. Empirically, this is true for superconductors that have been found so far. In the second half of this paper, we discuss cuprate high-temperature superconductors. We argue that superconductivity of high temperature cuprates is induced by the strong on-site Coulomb interaction, that is, the origin of high-temperature superconductivity is the strong electron correlation. We show the results on the ground state of electronic models for high temperature cuprates on the basis of the optimization variational Monte Carlo method. A high-temperature superconducting phase will exist in the strongly correlated region.
引用
收藏
页码:1 / 22
页数:22
相关论文
共 203 条
[1]   Does simple two-dimensional hubbard model account for High-Tc superconductivity in copper oxides? [J].
Aimi, Takeshi ;
Imada, Masatoshi .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2007, 76 (11)
[2]   EFFECTIVE LAGRANGIANS FOR BCS SUPERCONDUCTORS AT T=O [J].
AITCHISON, IJR ;
AO, P ;
THOULESS, DJ ;
ZHU, XM .
PHYSICAL REVIEW B, 1995, 51 (10) :6531-6535
[3]   First-principles study of the pressure and crystal-structure dependences of the superconducting transition temperature in compressed sulfur hydrides [J].
Akashi, Ryosuke ;
Kawamura, Mitsuaki ;
Tsuneyuki, Shinji ;
Nomura, Yusuke ;
Arita, Ryotaro .
PHYSICAL REVIEW B, 2015, 91 (22)
[4]   TRANSITION-TEMPERATURE OF STRONG-COUPLED SUPERCONDUCTORS REANALYZED [J].
ALLEN, PB ;
DYNES, RC .
PHYSICAL REVIEW B, 1975, 12 (03) :905-922
[5]   Effect of pressure on tiny antiferromagnetic moment in the heavy-electron compound URu2Si2 [J].
Amitsuka, H ;
Sato, M ;
Metoki, N ;
Yokoyama, M ;
Kuwahara, K ;
Sakakibara, T ;
Morimoto, H ;
Kawarazaki, S ;
Miyako, Y ;
Mydosh, JA .
PHYSICAL REVIEW LETTERS, 1999, 83 (24) :5114-5117
[6]   THE RESONATING VALENCE BOND STATE IN LA2CUO4 AND SUPERCONDUCTIVITY [J].
ANDERSON, PW .
SCIENCE, 1987, 235 (4793) :1196-1198
[7]  
[Anonymous], 1989, Solitons and instantons
[8]  
[Anonymous], 2009, UNIVERSE HELIUM DROP, DOI DOI 10.1093/ACPROF:OSO/9780199564842.001.0001
[9]   Coexistence of superconductivity and ferromagnetism in URhGe [J].
Aoki, D ;
Huxley, A ;
Ressouche, E ;
Braithwaite, D ;
Flouquet, J ;
Brison, JP ;
Lhotel, E ;
Paulsen, C .
NATURE, 2001, 413 (6856) :613-616
[10]   Incommensurate spin dynamics of underdoped superconductor YBa2Cu3O6.7 [J].
Arai, M ;
Nishijima, T ;
Endoh, Y ;
Egami, T ;
Tajima, S ;
Tomimoto, K ;
Shiohara, Y ;
Takahashi, M ;
Garrett, A ;
Bennington, SM .
PHYSICAL REVIEW LETTERS, 1999, 83 (03) :608-611