DocumentCode
1047657
Title
Domain-wall mobility in some rare-earth iron garnets
Author
Vella-coleiro, George P. ; Smith, David H. ; Van Uitert, L.G.
Author_Institution
Bell Telephone Laboratories, Inc., Murray Hill, N.J.
Volume
7
Issue
3
fYear
1971
fDate
9/1/1971 12:00:00 AM
Firstpage
745
Lastpage
747
Abstract
The domain-wall mobility has been measured in (Gd1-x Tbx )3 Fe5 O12 and (Gd1-x Dyx )3 Fe5 O12 for 
in the range 0 to 0.33. All the measurements were performed at 25°C on flux-grown crystals, and the mobility was found to vary from 2250 (cm/s)/Oe for Gd3 Fe5 O12 to 160 (cm/s)/Oe for (Gd0.67 Dy0.33 )3 Fe5 O12 and 78 (cm/s)/Oe for (Gd0.67 Tb0.33 )3 Fe5 O12 . The damping of the wall motion was found to increase linearly with to a good approximation. A method of determining the wall mobility in bulk samples from measurements of the RF susceptibility spectra is described. The results are discussed in terms of the slow relaxation model.
in the range 0 to 0.33. All the measurements were performed at 25°C on flux-grown crystals, and the mobility was found to vary from 2250 (cm/s)/Oe for Gd to a good approximation. A method of determining the wall mobility in bulk samples from measurements of the RF susceptibility spectra is described. The results are discussed in terms of the slow relaxation model.Keywords
Garnets; Magnetic bubble materials; Magnetic domain walls; Rare-earth garnets; Crystals; Damping; Garnets; Iron; Magnetic devices; Magnetic domain walls; Magnetic domains; Magnetic field measurement; Magnetic materials; Radio frequency;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1971.1067188
Filename
1067188
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