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Reinventing atomistic magnetic simulations with spin-orbit coupling

机译:利用自旋轨道耦合重塑原子磁模拟

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摘要

We propose a powerful extension to combined molecular and spin dynamics that fully captures the coupling between the atomic and spin subsystems via spin-orbit interactions. Its foundation is the inclusion of the local magnetic anisotropies that arise as a consequence of the lattice symmetry breaking due to phonons or defects. We demonstrate that our extension enables the exchange of angular momentum between the atomic and spin subsystems, which is critical to the challenges arising in the study of fluctuations and nonequilibrium processes in complex, natural, and engineered magnetic materials.
机译:我们提出了一种强大的扩展,以结合分子和自旋动力学,通过自旋轨道相互作用完全捕获原子和自旋子系统之间的耦合。它的基础是由于声子或缺陷引起的晶格对称性破坏而产生的局部磁各向异性。我们证明了我们的扩展能够实现原子子系统和自旋子系统之间的角动量交换,这对于研究复杂,天然和工程磁性材料中的涨落和非平衡过程中出现的挑战至关重要。

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  • 来源
    《Physical review》 |2016年第6期|060402.1-060402.5|共5页
  • 作者单位

    Center for Simulational Physics, The University of Georgia, Athens, Georgia 30602, USA;

    Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA;

    University of North Carolina at Asheville, Asheville, North Carolina 28804, USA;

    Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA;

    Center for Simulational Physics, The University of Georgia, Athens, Georgia 30602, USA;

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