Open AccessSHORT WAVELENGTH SPIN WAVE MODE EXCITATION BOUND TO THE DOMAIN WALLS IN MAGNETIC THIN FILM
Author(s) -
Shanbao Chen,
Zhiqiang Zhang
Publication year - 1996
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.45.2068
Subject(s) - excitation , wavelength , spin wave , permalloy , magnetic field , materials science , grating , optics , magnetic domain , thin film , physics , condensed matter physics , magnetization , ferromagnetism , quantum mechanics , nanotechnology
A structure for short wavelength spin wave mode excitation is developed, which is used to investigate a spin wave (Winter mode) bound to the domain wall in a magnetic bubble film with an rf magnetic field produced by a microstrip carrying rf current, a thin permalloy grating on the top of the magnetic specimen generates secondary magnetic fields which match the time frequency and spatial wavelength of the spin wave, and an efficient coupling between them is realized By means of phase lock-in techniques a differential absorption peak corresponding to the Winter mode has been observed at 318 MHz.