Inelastic light scattering by a dynamic domain wall

Author

Demokritov, S.O. ; Kirilyuk, A.I. ; Kreines, N.M. ; Kudinov, V.I. ; Chetkin, M.V. ; Smirnov, V.B.

Author_Institution

Inst. of Phys. Problems, Acad. of Sci., Moscow, USSR

Volume

25

Issue

5

fYear

1989

fDate

9/1/1989 12:00:00 AM

Firstpage

3479

Lastpage

3481

Abstract

Inelastic light scattering by a moving domain wall (DW) has been observed by means of Brillouin-Mandel´stam spectroscopy. The weak ferromagnet YFeO₃ (T_N=645 K) was investigated. The DW velocity as a function of pulsed magnetic field was determined from the scattering spectra. As the DW velocity approaches that of sound, the scattered light intensity increases abruptly due to phonons emitted by the DW. Regions of nonstationary motion are observed wherein the scattering spectra have complicated character

Keywords

Brillouin spectra; antiferromagnetic properties of substances; lattice phonons; magnetic domain walls; magneto-optical effects; weak ferromagnetism; yttrium compounds; 645 K; Brillouin-Mandel´stam spectroscopy; DW velocity; dynamic domain wall; inelastic light scattering; phonons; pulsed magnetic field; scattered light intensity; scattering spectra; weak ferromagnet YFeO₃; Acoustic scattering; Brillouin scattering; Frequency; Light scattering; Magnetic domain walls; Magnetic fields; Optical interferometry; Optical scattering; Phonons; Surface emitting lasers;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.42341

Filename

42341