TY - JOUR
T1 - Direct expressions for magnetic anisotropy constants
AU - Miura, Daisuke
AU - Sasaki, Ryo
AU - Sakuma, Akimasa
N1 - Publisher Copyright:
© 2015 The Japan Society of Applied Physics.
PY - 2015/11
Y1 - 2015/11
N2 - Direct expressions for the magnetic anisotropy constants are given at a finite temperature from a microscopic viewpoint. The present derivation assumes that the Hamiltonian is a linear function with respect to the magnetization direction. We discuss in detail the first-order anisotropy constant K1 and show that our present results reproduce previous results. We applied our method to Nd2Fe14B compounds and confirmed that the present method can reproduce the temperature dependence of the magnetocrystalline anisotoropy constants K1, K2, and K3 well.
AB - Direct expressions for the magnetic anisotropy constants are given at a finite temperature from a microscopic viewpoint. The present derivation assumes that the Hamiltonian is a linear function with respect to the magnetization direction. We discuss in detail the first-order anisotropy constant K1 and show that our present results reproduce previous results. We applied our method to Nd2Fe14B compounds and confirmed that the present method can reproduce the temperature dependence of the magnetocrystalline anisotoropy constants K1, K2, and K3 well.
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U2 - 10.7567/APEX.8.113003
DO - 10.7567/APEX.8.113003
M3 - Article
AN - SCOPUS:84946600156
SN - 1882-0778
VL - 8
JO - Applied Physics Express
JF - Applied Physics Express
IS - 11
M1 - 113003
ER -