Spin reorientation transition in single-domain.
We demonstrate that the interplay of in-plane biaxial and uniaxial anisotropy fields in results in a spin reorientation transition and an anisotropic ac susceptibility which is fully consistent with a simple single-domain model. The uniaxial and biaxial anisotropy constants vary, respectively, as the square and fourth power of the spontaneous magnetization across the whole temperature range up to . The weakening of the anisotropy at the transition may be of technological importance for applications involving thermally assisted magnetization switching.
Wang
K-Y
KY
School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, United Kingdom.
Sawicki
M
M
Edmonds
K W
KW
Campion
R P
RP
Maat
S
S
Foxon
C T
CT
Gallagher
B L
BL
Dietl
T
T