Ground State Properties Of The Frustrated Hubbard Model

被引：0

作者：

Nath, S. ^{[1
]}

Ghosh, N. K. ^{[1
]}

Bhowmick, S. K. ^{[1
]}

Mondal, N. S. ^{[1
]}

机构：

[1] Kalyani Univ, Dept Phys, Kalyani 741235, W Bengal, India

来源：

PROCEEDING OF INTERNATIONAL CONFERENCE ON RECENT TRENDS IN APPLIED PHYSICS & MATERIAL SCIENCE (RAM 2013) | 2013年 / 1536卷

关键词：

High-T-c Superconductivity; Hubbard model; d-wave pairing susceptibility; hole-hole correlation; T-J MODEL; SUPERCONDUCTING PHASE; EXACT-DIAGONALIZATION;

D O I：

10.1063/1.4810616

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The 2D Hubbard model extended by next-nearest-neighbor (NNN) hopping is considered at T -> 0. The d-wave pairing susceptibility is enhanced with NNN hopping. In the interacting case (U not equal 0), the hole-hole correlation decreases with NNN hopping. The hole-hole correlation is dominant at NNN sites which decrease with increase of NNN hopping strength.

引用

页码：1093 / 1094

页数：2

共 12 条

[1] EXACT-DIAGONALIZATION STUDY OF THE EFFECTIVE MODEL FOR HOLES IN THE PLANAR ANTIFERROMAGNET
BONCA, J
PRELOVSEK, P
SEGA, I
[J]. PHYSICAL REVIEW B, 1989, 39 (10) : 7074 - 7080
[2] CORRELATED ELECTRONS IN HIGH-TEMPERATURE SUPERCONDUCTORS
DAGOTTO, E
[J]. REVIEWS OF MODERN PHYSICS, 1994, 66 (03) : 763 - 840
[3] INDICATIONS OF D(X2-Y2) SUPERCONDUCTIVITY IN THE 2-DIMENSIONAL T-J MODEL
DAGOTTO, E
RIERA, J
[J]. PHYSICAL REVIEW LETTERS, 1993, 70 (05) : 682 - 685
[4] Slave-boson functional-integral approach to the Hubbard model with orbital degeneracy
Hasegawa, H
[J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1997, 66 (05) : 1391 - 1397
[5] HOLE DYNAMICS IN THE T-J MODEL - AN EXACT DIAGONALIZATION STUDY
HASEGAWA, Y
POILBLANC, D
[J]. PHYSICAL REVIEW B, 1989, 40 (13): : 9035 - 9043
[6] ELECTRON CORRELATIONS IN NARROW ENERGY BANDS
HUBBARD, J
[J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1963, 276 (1364) : 238 - +
[7] Hole pairs in the two-dimensional Hubbard model
Louis, E
Guinea, F
Sancho, MPL
Verges, JA
[J]. EUROPHYSICS LETTERS, 1998, 44 (02): : 229 - 234
[8] Effect of hole-phonon interaction on dx2ywave superconducting phase in 2D t-J model with phonon mediated interaction
Mondal, N. S.
Ghosh, N. K.
[J]. PHYSICA B-CONDENSED MATTER, 2011, 406 (19) : 3723 - 3725
[9] Role of next-nearest-neighbour hopping in the internal structure of the ground state and finite temperature quantities of 2D t-J model
Mondal, N. S.
Ghosh, N. K.
[J]. PRAMANA-JOURNAL OF PHYSICS, 2010, 74 (06): : 1009 - 1015
[10] Effect of next-nearest-neighbour interaction on dx2-y2-wave superconducting phase in 2D t-J model
Mondal, N. S.
Ghosh, N. K.
[J]. PRAMANA-JOURNAL OF PHYSICS, 2010, 74 (01): : 115 - 121

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