SPIN-TRIPLET SOLITONS IN THE ONE-DIMENSIONAL SYMMETRICAL KONDO-LATTICE

被引：23

作者：

WANG, ZQ

LI, XP

LEE, DH

机构：

[1] IBM CORP,THOMAS J WATSON RES CTR,DIV RES,YORKTOWN HTS,NY 10598

[2] RUTGERS UNIV,SERIN PHYS LAB,PISCATAWAY,NJ 08854

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.47.11935

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By analyzing the Gutzwiller-projected, self-consistent mean-field solutions we demonstrate that for all coupling strengths of the half-filled, one-dimensional Kondo lattice (1) the spin excitations are local triplets, (2) the charge gap is greater than the spin gap, and (3) doping by Kondo holes induces residual spin-1/2 local moments. The implications of these results on a number of experiments and their relevance to the ''Kondo insulators'' will be discussed.

引用

页码：11935 / 11939

页数：5

共 20 条

[1]

Aeppli G., 1992, COMMENTS COND MAT PH, V16, P155

[2]

AEPPLI G, 1991, PHYSICAL PHENOMENA H

[3] KONDO LATTICE AND WEAK ANTIFERROMAGNETISM [J].

DONIACH, S .

PHYSICA B & C, 1977, 91 (JUL) :231-234

[4] MAGNETISM IN DOPED KONDO INSULATORS [J].

DONIACH, S ;

FAZEKAS, P .

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1992, 65 (06) :1171-1183

[5] ONE-DIMENSIONAL SYMMETRICAL KONDO LATTICE - A QUANTUM MONTE-CARLO STUDY [J].

FYE, RM ;

SCALAPINO, DJ .

PHYSICAL REVIEW LETTERS, 1990, 65 (25) :3177-3181

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

GUTZWILLER, MC .

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

[7] HYBRIDIZATION GAP IN CE3BI4PT3 [J].

HUNDLEY, MF ;

CANFIELD, PC ;

THOMPSON, JD ;

FISK, Z ;

LAWRENCE, JM .

PHYSICAL REVIEW B, 1990, 42 (10) :6842-6845

[8] ANALOGY BETWEEN THE KONDO LATTICE AND THE HUBBARD-MODEL FROM RENORMALIZATION-GROUP CALCULATIONS IN ONE DIMENSION [J].

JULLIEN, R ;

PFEUTY, P .

JOURNAL OF PHYSICS F-METAL PHYSICS, 1981, 11 (02) :353-364

[9] NMR INVESTIGATION OF ENERGY-GAP FORMATION IN THE VALENCE FLUCTUATING COMPOUND CENISN [J].

KYOGAKU, M ;

KITAOKA, Y ;

NAKAMURA, H ;

ASAYAMA, K ;

TAKABATAKE, T ;

TESHIMA, F ;

FUJII, H .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1990, 59 (05) :1728-1732

[10]

KYOGAKU M, 1992, J PHYS SOC JPN, V61, pL43

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