期刊
EUROPEAN PHYSICAL JOURNAL B
卷 92, 期 2, 页码 -出版社
SPRINGER
DOI: 10.1140/epjb/e2019-90472-8
关键词
Solid State and Materials
The S-4 symmetric microscopic model with two iso-spin components has been studied via constrained-path quantum Monte Carlo simulation. Our results demonstrate a stable (, 0) or (0, ) magnetic order which is significantly enhanced on increasing both the Coulomb repulsion U and Hund's coupling strength J. Also, our simulation indicates that the magnetic order tends to be in an orthomagnetic state, in which the nearest-neighbour magnetic moment are orthogonal to each other, rather than in a collinear antiferromagnetic order. Interestingly, when the system is doped away from half filling, the magnetic order is obviously elevated in the low doping density, and then significantly suppressed when more electrons are introduced. Meanwhile, we find that an A(1g)s-wave pairing dominates all the singlet nearest-neighbour pairings, and is significantly enhanced by electron doping.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据