RIGOROUS CRITERIA FOR FERROMAGNETISM IN ITINERANT-ELECTRON SYSTEMS

被引：81

作者：

STRACK, R

VOLLHARDT, D

机构：

[1] Institut für Theoretische Physik C, Technische Hochschule Aachen

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.72.3425

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We derive the first detailed, rigorous criteria for the stability of saturated ferromagnetism in the most general single-band model of itinerant electrons, valid for arbitrary translationally invariant lattices, at half filling. These conditions are given by inequalities for the model parameters. Of all interactions only the on-site and the exchange interaction are found to be essential. By the same approach we also derive rigorous criteria for the stability of saturated ferromagnetism in the Hubbard model with a magnetic field.

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页码：3425 / 3428

页数：4

相关论文

共 28 条

[1] BOND-CHARGE REPULSION AND HOLE SUPERCONDUCTIVITY IN THE ATOMIC REPRESENTATION OF THE CUO2 PLANE [J].

APPEL, J ;

GRODZICKI, M ;

PAULSEN, F .

PHYSICAL REVIEW B, 1993, 47 (05) :2812-2820

[2] HUBBARD AND ANDERSON MODELS ON PEROVSKITE-LIKE LATTICES - EXACTLY SOLVABLE CASES [J].

BRANDT, U ;

GIESEKUS, A .

PHYSICAL REVIEW LETTERS, 1992, 68 (17) :2648-2651

[3] MODELING ELECTRON-ELECTRON INTERACTIONS IN REDUCED-DIMENSIONAL MATERIALS - BOND-CHARGE COULOMB REPULSION AND DIMERIZATION IN PEIERLS-HUBBARD MODELS [J].

CAMPBELL, DK ;

GAMMEL, JT ;

LOH, EY .

PHYSICAL REVIEW B, 1990, 42 (01) :475-492

[4] BOND-CHARGE COULOMB REPULSION IN PEIERLS-HUBBARD MODELS [J].

CAMPBELL, DK ;

GAMMEL, JT ;

LOH, EY .

PHYSICAL REVIEW B, 1988, 38 (16) :12043-12046

[5] ELECTRONIC MODEL FOR SUPERCONDUCTIVITY [J].

ESSLER, FHL ;

KOREPIN, VE ;

SCHOUTENS, K .

PHYSICAL REVIEW LETTERS, 1993, 70 (01) :73-76

[6] NEW EXACTLY SOLVABLE MODEL OF STRONGLY CORRELATED ELECTRONS MOTIVATED BY HIGH-TC SUPERCONDUCTIVITY [J].

ESSLER, FHL ;

KOREPIN, VE ;

SCHOUTENS, K .

PHYSICAL REVIEW LETTERS, 1992, 68 (19) :2960-2963

[7] SIMPLE MODEL FOR SEMICONDUCTOR-METAL TRANSITIONS - SMB6 AND TRANSITION-METAL OXIDES [J].

FALICOV, LM ;

KIMBALL, JC .

PHYSICAL REVIEW LETTERS, 1969, 22 (19) :997-&

[8] EFFECT OF CORRELATION ON FERROMAGNETISM OF TRANSITION METALS [J].

GUTZWILLER, MC .

PHYSICAL REVIEW LETTERS, 1963, 10 (05) :159-&

[9]

HANISCH T, 1993, ANN PHYS-LEIPZIG, V2, P381, DOI 10.1002/andp.19935050407

[10] SINGLE-PARTICLE EXCITATIONS IN NARROW ENERGY BANDS [J].

HARRIS, AB ;

LANGE, RV .

PHYSICAL REVIEW, 1967, 157 (02) :295-&