ELECTRONIC-PROPERTIES OF THE INSULATING HALF-FILLED HUBBARD-MODEL

被引：103

作者：

BULUT, N

SCALAPINO, DJ

WHITE, SR

机构：

[1] UNIV ILLINOIS,MAT RES LAB,URBANA,IL 61801

[2] UNIV CALIF SANTA BARBARA,DEPT PHYS,SANTA BARBARA,CA 93106

[3] UNIV CALIF IRVINE,DEPT PHYS,IRVINE,CA 92717

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.73.748

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Monte Carlo results for the frequency dependent conductivity sigma1(omega), the angular resolved photoemission spectral weight A(p,omega), and the electron momentum distribution [n(p)] are calculated for a half-filled Hubbard model with the on-site Coulomb interaction U equal to the bandwidth 8t. We find that even for U = 8t, a spin-density-wave approximation provides a sensible description of this data and hence a useful picture of the electronic degrees of freedom in the insulating state.

引用

页码：748 / 751

页数：4

共 9 条

[1] SUPERFLUID DENSITY AND THE DRUDE WEIGHT OF THE HUBBARD-MODEL [J].

SCALAPINO, DJ ;

WHITE, SR ;

ZHANG, SC .

PHYSICAL REVIEW LETTERS, 1992, 68 (18) :2830-2833

[2] INSULATOR, METAL, OR SUPERCONDUCTOR - THE CRITERIA [J].

SCALAPINO, DJ ;

WHITE, SR ;

ZHANG, SC .

PHYSICAL REVIEW B, 1993, 47 (13) :7995-8007

[3]

SCALAPINO DJ, 1993, IN PRESS JAN P SUM S

[4] DYNAMIC SPIN FLUCTUATIONS AND THE BAG MECHANISM OF HIGH-TC SUPERCONDUCTIVITY [J].

SCHRIEFFER, JR ;

WEN, XG ;

ZHANG, SC .

PHYSICAL REVIEW B, 1989, 39 (16) :11663-11679

[5] MAXIMUM-ENTROPY METHOD FOR ANALYTIC CONTINUATION OF QUANTUM MONTE-CARLO DATA [J].

SILVER, RN ;

SIVIA, DS ;

GUBERNATIS, JE .

PHYSICAL REVIEW B, 1990, 41 (04) :2380-2389

[6] PSEUDOGAP FORMATION IN THE HALF-FILLED HUBBARD-MODEL [J].

VEKIC, M ;

WHITE, SR .

PHYSICAL REVIEW B, 1993, 47 (02) :1160-1163

[7] NUMERICAL STUDY OF THE TWO-DIMENSIONAL HUBBARD-MODEL [J].

WHITE, SR ;

SCALAPINO, DJ ;

SUGAR, RL ;

LOH, EY ;

GUBERNATIS, JE ;

SCALETTAR, RT .

PHYSICAL REVIEW B, 1989, 40 (01) :506-516

[8] FORMATION OF GAPS IN THE 2-DIMENSIONAL HALF-FILLED HUBBARD-MODEL [J].

WHITE, SR .

PHYSICAL REVIEW B, 1992, 46 (09) :5678-5685

[9] SPECTRAL WEIGHT FUNCTION FOR THE 2-DIMENSIONAL HUBBARD-MODEL [J].

WHITE, SR .

PHYSICAL REVIEW B, 1991, 44 (09) :4670-4673

← 1 →