Magnetic and quadrupolar order in a one-dimensional ferromagnet with cubic crystal-field anisotropy

被引：10

作者：

Dudzinski, M

Fáth, G

Sznajd, J

机构：

[1] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland

[2] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.59.13764

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The zero-temperature phase diagram of a one-dimensional S = 2 Heisenberg ferromagnet with single-ion cubic anisotropy is studied numerically using the density-matrix renormalization-group method. Evidence is found that although the model does not involve quadrupolar couplings, there is a purely quadrupolar phase for large values of the anisotropy. The phase transition between the magnetic and quad-apolar phases is continuous and it seems to be characterized by Ising critical exponents. [S0163-1829(99)00621-9].

引用

页码：13764 / 13773

页数：10

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