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The effects of KSEA interaction on the ground-state properties of spin chains in a transverse field
The European Physical Journal B ( IF 1.6 ) Pub Date : 2020-05-04 , DOI: 10.1140/epjb/e2020-100542-1
Hao Fu , Ming Zhong , Peiqing Tong

Abstract

The effects of symmetric helical interaction which is called the Kaplan, Shekhtman, Entin-Wohlman, and Aharony (KSEA) interaction on the ground-state properties of three kinds of spin chains in a transverse field have been studied by means of correlation functions and chiral order parameter. We find that the anisotropic transition of XY chain in a transverse field (XY TF) disappears because of the KSEA interaction. For the other two chains, we find that the regions of gapless chiral phases in the parameter space induced by the Dzyaloshinskii and Moriya (DM) or XZYY ZX type of three-site interaction are decreased gradually with increase of the strength of KSEA interaction. When it is larger than the coefficient of DM or XZYY ZX type of three-site interaction, the gapless chiral phases also disappear.

Graphical abstract



中文翻译:

KSEA相互作用对横向场中自旋链基态性质的影响

摘要

通过相关函数和手性方法研究了对称螺旋相互作用(称为Kaplan,Shekhtman,Entin-Wohlman和Aharony(KSEA)相互作用)对横向场中三种自旋链的基态性质的影响。订单参数。我们发现,由于KSEA相互作用,横向链中XY链的各向异性转变(XY TF)消失了。对于其他两条链,我们发现,随着KSEA相互作用强度的增加,由Dzyaloshinskii和Moriya(DM)或XZY - Y ZX型三点相互作用诱导的参数空间中的无间隙手性相区域逐渐减小。当它大于DM的系数或XZY - Y ZX型的三点相互作用,无间隙的手性相也消失了。

图形概要

更新日期:2020-05-04
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