Effects of annealing temperature, atomic composition, film thickness on structure and magnetic properties of CoPt composite films
Effects of annealing temperature, atomic composition, film thickness on structure and magnetic properties of CoPt composite films
复制标题
退火温度、原子组成、膜厚对CoPt复合薄膜结构和磁性能的影响
DOI:
10.1016/j.jallcom.2010.09.020
复制
发表时间:
2011-01
影响因子:
6.2
通讯作者:
张永军
中科院分区:
文献类型:
--
作者:
张永军
L10–CoPt was obtained by annealing the CoPt film at 600°C after co-sputtering Co and Pt targets in a magnetron sputtering system. X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) results showed a transformation from the face-centered-cubic (FCC) structure to the L10ordered structure during the post-deposition annealing. Thermal stress (ST), intrinsic stress (Si) and total stress (Stotal) in the films decreased with the increase of the annealing temperature. When the Co atomic composition was 50%, the coercivity of the CoPt film reached to a giant value, around 6300Oe. The stress was released when the film thickness increased. The relaxed residual stress accounted for the enhancement in the coercivity. Magnetization reversal mechanism of the Co50Pt50film followed neither the S–W model nor the DWM model.
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影响因子:
6.2
作者:
Zhang K;Chen Z;Yang GC;Liu F
通讯作者:
Liu F
影响因子:
64.8
作者:
K. Lonsdale
通讯作者:
K. Lonsdale
影响因子:
3
作者:
Yoshio Kobayashi;M. Horie;D. Nagao;Y. Ando;T. Miyazaki;M. Konno
通讯作者:
Yoshio Kobayashi;M. Horie;D. Nagao;Y. Ando;T. Miyazaki;M. Konno
影响因子:
6.2
作者:
S. Jen
通讯作者:
S. Jen
DOI:
10.1021/la700719h
发表时间:
2007-06
期刊:
Langmuir : the ACS journal of surfaces and colloids
影响因子:
--
作者:
Arnaud Demortière;Christophe Petit
通讯作者:
Arnaud Demortière;Christophe Petit