NORMAL STATE AND SUPERCONDUCTING PROPERTIES OF THE 3-BAND HUBBARD-MODEL FROM QUANTUM MONTE-CARLO SIMULATIONS

被引：15

作者：

DOPF, G

MURAMATSU, A

HANKE, W

机构：

[1] Physikalisches Institut, Universitat Wurzburg, D-8700 Wurzburg, Am Hubland

来源：

PHYSICA C | 1991年 / 185卷 / pt 3期

关键词：

10;

D O I：

10.1016/0921-4534(91)90874-X

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A set of parameters for the three-band Hubbard model is determined by comparison of Quantum Monte Carlo results with experimental values for the charge transfer gap. With the obtained parameter set we have calculated the spectral function A(k -->, omega) for the one-particle Green's function. We find very good agreement with experimental photoemission and inverse photoemission data both for the location of the Fermi surface and for the Fermi velocity. Moreover, the interaction vertex for the pairing correlation function in the extended s-channel shows a maximum for delta approximately 20%, resembling the dependence of T(c) on doping. This feature is not present for other symmetries of the order parameter or in other parameter regions.

引用

页码：1495 / 1496

页数：2

共 10 条

[1] 3-BAND HUBBARD-MODEL - A MONTE-CARLO STUDY [J].

DOPF, G ;

MURAMATSU, A ;

HANKE, W .

PHYSICAL REVIEW B, 1990, 41 (13) :9264-9276

[2] ELECTRONIC BAND-STRUCTURE OF CABI2SR2CU2O8 [J].

HYBERTSEN, MS ;

MATTHEISS, LF .

PHYSICAL REVIEW LETTERS, 1988, 60 (16) :1661-1664

[3] ELECTRONIC-STRUCTURE AND FERMI-SURFACE OF BI2SR2CACU2O8 [J].

MANTE, G ;

CLAESSEN, R ;

BUSLAPS, T ;

HARM, S ;

MANZKE, R ;

SKIBOWSKI, M ;

FINK, J .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1990, 80 (02) :181-185

[4] CUPRATE PARAMETERS FROM NUMERICAL WANNIER FUNCTIONS [J].

MCMAHAN, AK ;

ANNETT, JF ;

MARTIN, RM .

PHYSICAL REVIEW B, 1990, 42 (10) :6268-6282

[5] CHARGE-TRANSFER GAP AND SUPEREXCHANGE INTERACTION IN INSULATING CUPRATES [J].

OHTA, Y ;

TOHYAMA, T ;

MAEKAWA, S .

PHYSICAL REVIEW LETTERS, 1991, 66 (09) :1228-1231

[6]

TORRANCE JB, 1989, PHYS REV B, V40, P8872

[7] MONTE-CARLO CALCULATION OF DYNAMICAL PROPERTIES OF THE TWO-DIMENSIONAL HUBBARD-MODEL [J].

WHITE, SR ;

SCALAPINO, DJ ;

SUGAR, RL ;

BICKERS, NE .

PHYSICAL REVIEW LETTERS, 1989, 63 (14) :1523-1526

[8] 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

[9] ATTRACTIVE AND REPULSIVE PAIRING INTERACTION VERTICES FOR THE TWO-DIMENSIONAL HUBBARD-MODEL [J].

WHITE, SR ;

SCALAPINO, DJ ;

SUGAR, RL ;

BICKERS, NE ;

SCALETTAR, RT .

PHYSICAL REVIEW B, 1989, 39 (01) :839-842

[10] EFFECTIVE HAMILTONIAN FOR THE SUPERCONDUCTING CU OXIDES [J].

ZHANG, FC ;

RICE, TM .

PHYSICAL REVIEW B, 1988, 37 (07) :3759-3761

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