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arXiv · 1104.2673

Chirality waves in two-dimensional magnets

D. Solenov·D. Mozyrsky·I. Martin
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Abstract

We theoretically show that moderate interaction between electrons confined to move in a plane and localized magnetic moments leads to formation of a noncoplanar magnetic state. The state is similar to the skyrmion crystal recently observed in cubic systems with the Dzyaloshinskii-Moriya interaction; however, it does not require spin-orbit interaction. The non-coplanar magnetism is accompanied by the ground-state electrical and spin currents, generated via the real-space Berry phase mechanism. We examine the stability of the state with respect to lattice discreteness effects and the magnitude of magnetic exchange interaction. The state can be realized in a number of transition metal and magnetic semiconductor systems.

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D. Solenov, D. Mozyrsky, I. Martin. 2012-03-19. Chirality waves in two-dimensional magnets. https://doi.org/10.1103/physrevlett.108.096403

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