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

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

2011-02-14

arxiv.org/abs/1102.2726v1

Journal of Physics D: Applied Physics 44 392001 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1088/0022-3727/44/39/392001

Axisymmetric magnetic lines of nanometer 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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