Magneto-Optical Spectra of Ordered and Disordered FePt Films Prepared at Reduced Temperatures
Magneto-Optical Spectra of Ordered and Disordered FePt Films Prepared at Reduced Temperatures
复制标题
DOI：
10.3379/tmjpn2001.4.297
复制
发表时间：
2004-11
期刊：
影响因子：
--
通讯作者：
Katsuaki Sato;A. Mizusawa;K. Ishida;T. Seki;T. Shima;K. Takanashi
中科院分区：
文献类型：
--
作者：
Katsuaki Sato;A. Mizusawa;K. Ishida;T. Seki;T. Shima;K. Takanashi
测量了在降低衬底温度下制备的外延FePt薄膜的反射率和磁光克尔光谱。根据这些谱计算了电导率张量的非对角元。与常规制备条件下制备的FePt薄膜相比，在低温下制备的ll0有序FePt薄膜与在高温下制备的FePt薄膜具有相似的电子性能。在300℃下制备的无序FePt薄膜具有介于有序态和无序态之间的中间电子态。
Reflectivity and magneto-optical Kerr spectra are measured in epitaxial FePt films prepared under reduced substrate temperatures. From these spectra off-diagonal elements of conductivity tensor was calculated. By comparison with those prepared under conventional preparation conditions, the Ll0-ordered FePt films prepared at reduced temperatures proved to have similar electronic properties to those prepared at elevated temperatures. It is also elucidated that disordered FePt films prepared at 300°C show intermediate electronic states between ordered and disordered states.