【摘 要】
：
Dzyaloshinskii-Moriya (DM) interaction is one of the most intriguing manifestations of relativistic effects in magnetic solids.It plays a crucial role to st
【机 构】
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RIKEN Center for Emergent Matter Science, Saitama 351-0198, Japan
【出 处】
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1st International Conference on Computational Design and Sim
论文部分内容阅读
Dzyaloshinskii-Moriya (DM) interaction is one of the most intriguing manifestations of relativistic effects in magnetic solids.It plays a crucial role to stabilize a variety of non-trivial spin structures such as skyrmions.Thus, quantitative understanding and control of the DM interaction is of great interest.Recently, it has been experimentally shown that the DM interaction in Mnl-xFexGe, one of representative skyrmion systems, has drastic carrier density dependence [1].Motivated by this study, here, we study how the DM interaction changes its size and sign in metallic helimagnets.Using first-principles calculations, we successfully reproduce the non-trivial sign change of the DM interaction observed in the experiment.The origin of the sign change is discussed in terms of spin mixing due to spin-orbit coupling in the band structure [2].
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