Dynamics of domain walls in weak ferromagnets

2017/03/04 by A. K. Zvezdin · 1 citation
Physics and Astronomy · #cond-mat.stat-mech #cond-mat.mtrl-sci

paper · pdf

published as Soviet Journal of Experimental and Theoretical Physics Letters, 29, 553 (1979) · 4 pages, 1 figure

arxiv created 2017/03/04 · arxiv updated 2017/03/07

Abstract

It is shown that the total set of equations, which determines the dynamics of the domain bounds (DB) in a weak ferromagnet, has the same type of specific solution as the well-known Walker's solution for ferromagnets. We calculated the functional dependence of the velocity of the DB on the magnetic field, which is described by the obtained solution. This function has a maximum at a finite field and a section of the negative differential mobility of the DB. According to the calculation, the maximum velocity c ≈ 2 × 10⁶ cm/sec in YFeO₃ is reached at H_m ≈ 4 × 10³ Oe.

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