Electric field control of the skyrmion lattice in Cu2OSeO3
Electric field control of the skyrmion lattice in Cu2OSeO3
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DOI：
10.1088/0953-8984/24/43/432201
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发表时间：
2012-10-31
影响因子：
2.7
通讯作者：
Ronnow, H. M.
中科院分区：
文献类型：
--
作者：
White, J. S.;Levatic, I.;Ronnow, H. M.
用小角中子散射研究了外加电场对手征晶格磁电Cu2OSeO_3中Skyrmion晶格的影响。利用电场平行于[111]轴，磁场平行于[1(1)Over Bar0]轴的实验几何，我们证明了施加电场的效果是使Skyrmion晶格绕磁场轴可控地旋转。我们的结果首次重要地证明了外加电场与绝缘体中的Skyrmions之间的微观耦合，并表明Skyrmions的一般出射性质可以根据宿主系统的性质进行调整。
Small-angle neutron scattering has been employed to study the influence of applied electric (E-) fields on the skyrmion lattice in the chiral lattice magnetoelectric Cu2OSeO3. Using an experimental geometry with the E-field parallel to the [111] axis, and the magnetic field parallel to the [1 (1) over bar0] axis, we demonstrate that the effect of applying an E-field is to controllably rotate the skyrmion lattice around the magnetic field axis. Our results are an important first demonstration for a microscopic coupling between applied E-fields and the skyrmions in an insulator, and show that the general emergent properties of skyrmions may be tailored according to the properties of the host system.