Ying An, Ji Liang, Wei Wang, Mei-mei Du and Feng-ge Zhang
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引用次数: 0
摘要
这项研究的重点是铁磁性类石墨烯三层材料在晶体场和交换耦合作用下的基态相图、补偿温度和临界行为。模拟结果表明,晶体场的负向减小或交换耦合的增加会提高临界温度。更重要的是,可以观察到具有双重补偿温度的 M 曲线,这是理论所无法预测的。这一显著的补偿现象在磁记录领域具有潜在的应用价值。
Compensation temperatures and hysteresis behaviors of a graphene-like trilayer
This work focuses on the ground-state phase diagram, the compensation temperatures and the critical behaviors of a ferrimagnetic graphene-like trilayer induced by crystal fields and exchange couplings. The simulation results show that a negative decrease in crystal field or an increase in exchange coupling can increase the critical temperature. More importantly, an M curve with double compensation temperatures can be observed, which is not predicted by the theory. This remarkable compensation phenomenon has potential application value in the field of magnetic recording.
期刊介绍:
Communications in Theoretical Physics is devoted to reporting important new developments in the area of theoretical physics. Papers cover the fields of:
mathematical physics
quantum physics and quantum information
particle physics and quantum field theory
nuclear physics
gravitation theory, astrophysics and cosmology
atomic, molecular, optics (AMO) and plasma physics, chemical physics
statistical physics, soft matter and biophysics
condensed matter theory
others
Certain new interdisciplinary subjects are also incorporated.