Chiral skyrmions in thin magnetic films: new objects for magnetic storage technologies?

被引:340
作者
Kiselev, N. S. [1 ]
Bogdanov, A. N. [1 ]
Schaefer, R. [1 ]
Roessler, U. K. [1 ]
机构
[1] IFW Dresden, D-01171 Dresden, Germany
关键词
UNIAXIAL PLATELETS; DOMAINS; STABILITY; CRYSTALS; STATES;
D O I
10.1088/0022-3727/44/39/392001
中图分类号
O59 [应用物理学];
学科分类号
摘要
Axisymmetric magnetic string-like objects of nanometre sizes (chiral vortices or skyrmions) have been predicted to exist in a large group of noncentrosymmetric crystals more than two decades ago. Recently, these magnetic textures have been directly observed in nanolayers of cubic helimagnets and monolayers of magnetic metals. We develop a micromagnetic theory of chiral skyrmions in thin magnetic layers for magnetic materials with intrinsic and induced chirality. Such particle-like and stable micromagnetic objects can exist in broad ranges of applied magnetic fields including zero field. Chiral skyrmions can be used as a new type of highly mobile nanoscale data carriers.
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页数:4
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