Magnetic domain structures and domain rotation process in Fe-x at. %Ga (x=12, 19, and 25) alloys have been studied by magnetic force microscopy. Our results show that the missing connection between magnetic domains and the underlying microstructure [Xing and Lograsso, Appl. Phys. Lett. 93, 182501 (2008)] is (i) a perpendicular magnetic anisotropy; and (ii) domain irregularities/fluctuations induced by a quenched random-field condition: both of which may have direct relations with dispersed low-symmetry nanoprecipitates [Cao, etal, Phys. Rev. Lett. 102, 127201 (2009)].
Published in:
Applied Physics Letters
(Volume:95
,
Issue:
15
)
Date of Publication:
Oct 2009
- Page(s):
-
152511
-
152511-3
- ISSN :
-
0003-6951
- Digital Object Identifier :
-
10.1063/1.3238062
- Product Type:
-
Journals & Magazines
- Date of Current Version :
-
20 October 2009
- Issue Date :
-
Oct 2009