Quantum spin glass in anisotropic dipolar systems

被引：10

作者：

Schechter, M. ^{[1
]}

Stamp, P. C. E.

Laflorencie, N.

机构：

[1] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

[2] Univ British Columbia, Pacific Inst Theoret Phys, Vancouver, BC V6T 1Z1, Canada

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2007年 / 19卷 / 14期

关键词：

D O I：

10.1088/0953-8984/19/14/145218

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The spin-glass phase in the LiHoxY1-xF4 compound is considered. At zero transverse field this system is well described by the classical Ising model. At finite transverse field deviations from the transverse field quantum Ising model are significant, and one must take properly into account the hyperfine interactions, the off-diagonal terms in the dipolar interactions, and details of the full J = 8 spin Hamiltonian to obtain the correct physical picture. In particular, the system is not a spin glass at finite transverse fields and does not show quantum criticality.

引用

页数：6

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