Quantum solitons in the sawtooth lattice

被引：107

作者：

Sen, D ^{[1
]}

Shastry, BS ^{[1
]}

Walstedt, RE ^{[1
]}

Cava, R ^{[1
]}

机构：

[1] AT&T BELL LABS,MURRAY HILL,NJ 07974

来源：

PHYSICAL REVIEW B | 1996年 / 53卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.53.6401

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the sawtooth lattice of a coupled spin 1/2 Heisenberg system, a variant of the railroad-trestle lattice. The ground state of this system is twofold degenerate with periodic boundary conditions and supports kink-antikink excitations, which are distinct in this case, unlike the railroad-trestle lattice. The resulting low-temperature thermodynamics is compared with the recently discovered delafossites YCuO2.5.

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页码：6401 / 6405

页数：5

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