PAIRING INSTABILITIES IN THE 2-DIMENSIONAL HUBBARD-MODEL

被引：38
作者：
CHUBUKOV, AV [1 ]
LU, JP [1 ]
机构：
[1] PL KAPITZA PHYS PROBLEMS INST,117334 MOSCOW,USSR
来源：
PHYSICAL REVIEW B | 1992年 / 46卷 / 17期
关键词：
D O I：
10.1103/PhysRevB.46.11163
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We show that for low and moderate fillings the ground state of the two-dimensional Hubbard model with positive-U and nearest-neighbor hopping is unstable with respect to d-wave pairing with d(xy) symmetry of the gap wave function: DELTA is similar to sink(x),sink(y). The inclusion of the next-neighbor hopping may either suppress the pairing or change the symmetry of the superconducting state.
引用
收藏
页码：11163 / 11166
页数：4
相关论文
共 40 条
[1]  
AFANASEV AM, 1962, SOV PHYS JETP, V15, P1009
[2]   A DIALOG ON THE THEORY OF HIGH-TC [J].
ANDERSON, PW ;
SCHRIEFFER, R .
PHYSICS TODAY, 1991, 44 (06) :54-61
[3]   THE RESONATING VALENCE BOND STATE IN LA2CUO4 AND SUPERCONDUCTIVITY [J].
ANDERSON, PW .
SCIENCE, 1987, 235 (4793) :1196-1198
[4]  
ANNETT JF, 1990, PHYSICAL PROPERTIES
[5]  
Baranov M. A., 1991, Soviet Physics - JETP, V72, P689
[6]   D-WAVE PAIRING IN THE 2-DIMENSIONAL HUBBARD-MODEL WITH LOW FILLING [J].
BARANOV, MA ;
KAGAN, MY .
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1992, 86 (02) :237-239
[7]   CONSERVING APPROXIMATIONS FOR STRONGLY CORRELATED ELECTRON-SYSTEMS - BETHE-SALPETER-EQUATION AND DYNAMICS FOR THE TWO-DIMENSIONAL HUBBARD-MODEL [J].
BICKERS, NE ;
SCALAPINO, DJ ;
WHITE, SR .
PHYSICAL REVIEW LETTERS, 1989, 62 (08) :961-964
[8]   ANALYSIS OF NMR DATA IN THE SUPERCONDUCTING STATE OF YBA2CU3O7 [J].
BULUT, N ;
SCALAPINO, DJ .
PHYSICAL REVIEW LETTERS, 1992, 68 (05) :706-709
[9]   ENHANCED PAIRING IN THE REPULSIVE HUBBARD-MODEL WITH NEXT-NEAREST-NEIGHBOR HOPPING [J].
DOSSANTOS, RR .
PHYSICAL REVIEW B, 1989, 39 (10) :7259-7262
[10]  
DZYALOSHINSKII IE, 1988, ZH EKSP TEOR FIZ, V67, P844
1234