The domain-wall mobility has been measured in (Gd1-xTbx)3Fe5O12and (Gd1-xDyx)3Fe5O12forxin 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 Gd3Fe5O12to 160 (cm/s)/Oe for (Gd0.67Dy0.33)3Fe5O12and 78 (cm/s)/Oe for (Gd0.67Tb0.33)3Fe5O12. The damping of the wall motion was found to increase linearly withxto 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.
Published in:
Magnetics, IEEE Transactions on
(Volume:7
,
Issue:
3
)
Date of Publication:
Sep 1971
- Page(s):
-
745
-
747
- ISSN :
-
0018-9464
- Digital Object Identifier :
-
10.1109/TMAG.1971.1067188
- Product Type:
-
Journals & Magazines
- Date of Current Version :
-
06 January 2003
- Issue Date :
-
Sep 1971
- Sponsored by :
-
IEEE Magnetics Society