Skyrmion mass and a new kind of the cyclotron resonance for 2DEG

Details Skyrmion mass and a new kind of the cyclotron resonance for 2DEG Skyrmion mass and a new kind of the cyclotron resonance for 2DEG

1997-09-03

arxiv.org/abs/cond-mat/9709040v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, Latex (submitted to JETP lett.)

Scientific paper

10.1134/1.567538

The skyrmionic mass was calculated in the main order of the gradient expansion in derivatives of the rotation matrix. The mass is proportinal to the topological invariant which is the absolut value of the degree of the mapping. The coefficient is defined by the exchange interaction. The charged skyrmions in magnetic field give rise to a special branch of cyclotron resonance with the frequency defined by the exchange interaction and have the corresponding term in their minimal energy. The possibility of an extra bound electron and neutral skyrmions is discussed.

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