Competing interactions in the XYZ model -: art. no. 144426

被引：6
|
作者：
Arlego, M
Cabra, DC
Drut, JE
Grynberg, MD
机构：
[1] Natl Univ La Plata, Dept Fis, RA-1900 La Plata, Argentina
[2] Ecole Normale Super Lyon, Phys Lab, Grp Phys Theor, F-69364 Lyon 07, France
来源：
PHYSICAL REVIEW B | 2003年 / 67卷 / 14期
关键词：
D O I：
10.1103/PhysRevB.67.144426
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study the interplay between an XY anisotropy gamma, exchange modulations, and an external magnetic field along the z direction in an XYZ chain using bosonization and Lanczos diagonalization techniques. We find an Ising critical line in the space of couplings which occur due to competing relevant perturbations that are present. More general situations are also discussed.
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页数：5
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