Fermi surface of the one-dimensional Kondo-lattice model

被引：30

作者：

Moukouri, S ^{[1
]}

Caron, LG ^{[1
]}

机构：

[1] UNIV SHERBROOKE, DEPT PHYS, SHERBROOKE, PQ J1K 2R1, CANADA

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.54.12212

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We show a strong indication of the existence of a large Fermi surface in the one-dimensional Kondo-lattice model. The characteristic wave vector of the model is found to be k(F)=(1 + rho)pi/2, rho being the density of the conduction electrons. This result is at first obtained for a variant of the model that includes an antiferromagnetic Heisenberg interaction J(H) between the local moments. It is then directly observed in the conventional Kondo lattice (J(H)=0), in the narrow range of Kondo couplings where the long distance properties of the model are numerically accessible.

引用

页码：12212 / 12215

页数：4

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