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首页> 外文期刊>Physical Review, B. Condensed Matter >Effects of magnetic field on the two-dimensional systems of antiferromagnetically correlated electrons based on the Hubbard model Hamiltonian with easy axis: Aharonov-Bohm and Zeeman effects
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Effects of magnetic field on the two-dimensional systems of antiferromagnetically correlated electrons based on the Hubbard model Hamiltonian with easy axis: Aharonov-Bohm and Zeeman effects

机译：基于具有易轴的哈伯德模型哈密顿量的磁场对反铁磁相关电子二维系统的影响：Aharonov-Bohm和Zeeman效应

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摘要

In the present study we study the two-dimensional systems of antiferromagnets with easy axis and the variation of staggered magnetization with the increase of magnetic fields. The Aharonov-Bohm and the Zeeman effects on the staggered magnetizations are examined. The reentrant behavior of paramagnetic phase is shown to occur even at extremely high applied magnetic fields when only the Aharonov-Bohm effect is taken into account. An inhomogeneous phase (i.e., the inhomogeneous distribution with antiferromagnetic clusters) is also shown to exhibit the reentrant behavior. On the other hand, when the Zeeman effect is introduced, the reentrant behavior occurs only at low fields below a critical magnetic field corresponding to a critical Zeeman energy close to the hopping energy in the order of magnitude. [References: 21]
机译：在本研究中，我们研究具有易轴性的二维反铁磁体系统以及随着磁场的增加而交错磁化的变化。考察了Aharonov-Bohm和Zeeman对交错磁化强度的影响。当仅考虑Aharonov-Bohm效应时，即使在极高的施加磁场下，顺磁性相的重入行为也会发生。不均匀相（即具有反铁磁簇的不均匀分布）也显示出可重入的行为。另一方面，当引入塞曼效应时，仅在临界磁场以下的低磁场处发生折返行为，该低磁场对应于接近跳跃能量的临界塞曼能量的数量级。 [参考：21]

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