Simulation of vertical Bloch lines non-reciprocal dynamics

Author

Dobrovitski, Viacheslav V. ; Logginov, Alexander S. ; Nikolaev, Alexei V.

Author_Institution

Dept. of Phys., Moscow State Univ., Russia

Volume

30

Issue

6

fYear

1994

fDate

11/1/1994 12:00:00 AM

Firstpage

4353

Lastpage

4355

Abstract

An origin of experimentally registered vertical Bloch line (VBL) non-reciprocal dynamics in bubble garnets was examined. A model which describes symmetry breaking taking into account the existence of wall static microtilt at the VBL location was developed. Numerical calculation based on Slonczewki´s equations revealed that static wall tilt influences the character of energy dissipation processes in the vicinity of the VBL (and hence, VBL velocity). Depending on the direction of VBL motion nucleation of horizontal Bloch loops around VBL proves to be suppressed or facilitated. The calculated difference in VBL velocities for opposite directions of motion is about 10÷15%, which corresponds to the experimental data

Keywords

garnets; magnetic bubbles; magnetic domain walls; Slonczewki´s equations; bubble garnets; domain wall static microtilt; energy dissipation; horizontal Bloch loops; nonreciprocal dynamics; symmetry breaking; vertical Bloch lines; Energy dissipation; Equations; Garnets; Gyrotropism; Hip; Magnetic domain walls; Magnetic domains; Physics; Predictive models; Topology;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.334085

Filename

334085