arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1609.07191cond-mat.str-elcond-mat.stat-mech
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模拟浮区法

Simulated floating zone method

Ryo Ozawa, Yasuyuki Kato, Yukitoshi Motome

摘要:

本文提供了模拟浮动区(SFZ)方法,这是一种有效的模拟技术,以获得热平衡状态,特别是有用的磁畴形成时,防止系统达到空间均匀的稳定状态。在SFZ方法中,系统被局部加热,并且加热区域被稳定地移动,类似于在实验中生长具有较少晶格缺陷和杂质的单晶的浮区法。我们表明,SFZ方法抑制域的形成和加速状态的优化,以一个例子的磁涡旋晶体状态实现巡回磁铁。我们表明,效率最大化时,局部加热温度被调整到可以与有序态的特征能量尺度相媲美。

英文摘要:

This paper provides the simulated floating zone (SFZ) method that is an efficient simulation technique to obtain thermal equilibrium states, especially useful when domain formation prevents the system from reaching a spatially-uniform stable state. In the SFZ method, the system is heated up locally, and the heated region is steadily shifted, similar to the floating zone method for growing a single crystal with less lattice defect and impurity in experiments. We demonstrate that the SFZ method suppresses domain formation and accelerates the optimization of the state, taking an example of a magnetic vortex crystal state realized in itinerant magnets. We show that the efficiency is maximized when the local heating temperature is tuned to be comparable to the characteristic energy scale of the ordered state.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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