TEM study of the influence of antisite defects on magnetic domain structures in double perovskite Ba2FeMoO6.
Magnetic domain structures and crystal structures of double perovskite Ba(2)FeMoO(6) were studied using Lorentz transmission electron microscopy (TEM), dark-field imaging and high-resolution TEM. Two types of magnetic domain structure were observed below the Curie temperature: an ordinary 180 degrees ferromagnetic domain structure and a typical maze-pattern structure. In regions where maze-pattern structures were observed, antiphase boundaries were found by dark-field imaging and high-resolution TEM and develop densely in Fe/Mo-ordering domains, suggesting that Fe/Mo antisite defects affect magnetic domain structures.
Yu
Xiuzhen
X
Spin Super Structure Project, Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology Agency, c/o AIST, Tsukuba Central 4, Tsukuba 305-8562, Japan. xiuzhen-yu@aist.go.jp
Asaka
Toru
T
Tomioka
Yasuhide
Y
Tsuruta
Chusei
C
Nagai
Takuro
T
Kimoto
Koji
K
Kaneko
Yoshio
Y
Tokura
Yoshinori
Y
Matsui
Yoshio
Y