论文标题
在双重装饰的正方形晶格上半填充自旋电子模型的常规和旋转磁电效应
Conventional and rotating magnetoelectric effect of a half-filled spin-electron model on a doubly decorated square lattice
论文作者
论文摘要
通过精确的计算研究了半填充的自旋电子模型对双重装饰的平方晶格的常规和旋转磁电效应。详细研究了电场在磁场效应时电场的电子跳和空间取向的重要性。临界温度可能显示连续一个或两个圆形最大值作为电场的函数。尽管旋转的磁电效应(RME)不影响地下订购,但发现明显的RME接近连续相变的临界温度。结果表明,在加强电场后,RME会放大,该电场还支持在破坏自发的抗磁力磁性长距离阶时的热波动。
A conventional and rotating magnetoelectric effect of a half-filled spin-electron model on a doubly decorated square lattice is investigated by exact calculations. An importance of the electron hopping and spatial orientation of the electric field upon a magnetoelectric effect is examined in detail. A critical temperature may display one or two consecutive round maxima as a function of the electric field. Although the rotating magnetoelectric effect (RME) does not affect the ground-state ordering, the pronounced RME is found close to a critical temperature of continuous phase transition. It is shown that RME is amplified upon strengthening of the electric field, which additionally supports thermal fluctuations in destroying a spontaneous antiferromagnetic long-range order.