Dynamics of the intermediate state and domain walls in an external oscillating magnetic field |
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Authors: | V S Gerasimchuk A L Sukstanskii |
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Institution: | (1) Donbas Engineering and Construction Academy, 339023 Makeevka, Ukraine;(2) Donetsk Physicotechnical Institute, Ukrainian National Academy of Sciences, 340114 Donetsk, Ukraine |
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Abstract: | We study the dynamics of 90-degree domain walls in the intermediate state of antiferromagnets, the state being realized in
a first-order spin-flop transition in an external magnetic field. We show that an additional oscillating external magnetic
field leads to a drift in the domain walls and find the dependence of the drift velocity on the amplitude, frequency, and
polarization of the oscillating field. Finally, we discuss the possibility of the domain structure drifting as a whole.
Zh. éksp. Teor. Fiz. 112, 1374–1385 (October 1997) |
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