Magnetic and Magneto-Optical Properties of a Novel Ferromagnetic Semiconductor CdGeP2:Mn
Magnetic and Magneto-Optical Properties of a Novel Ferromagnetic Semiconductor CdGeP2:Mn
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新型铁磁半导体 CdGeP2:Mn 的磁和磁光特性
DOI：
10.3379/jmsjmag.25.283
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
T. Ishibashi
中科院分区：
文献类型：
--
作者：
Katsuaki Sato;G. A. Medvedkin;K. Hayata;Y. Hasegawa;T. Nishi;R. Misawa;T. Ishibashi
在室温下测量了掺锰的CdGeP2单晶表层的磁性和磁光性质。用VSM测量的磁化曲线清楚地显示出一个铁磁磁滞回线，Hc=0.4Koe叠加在抗磁成分上。根据磁化强度与温度的关系曲线，确定其铁磁居里温度为320K。在1.2-4 eV范围内测量了磁光克尔效应。0.14°的克尔椭圆度峰值出现在1.75 eV附近。
Magnetic and magneto-optical properties were measured at room temperature in the Mn-diffused surface layer of a CdGeP2 single crystal. The magnetization curve measured using VSM clearly shows a ferromagnetic hysteresis loop with Hc=0.4 kOe superposed on the diamagnetic component. The ferromagnetic Curie temperature was determined as 320 K from the magnetization vs. temperature curve. The magneto-optical Kerr effect was measured between 1.2 and 4 eV. The peak Kerr ellipticity of 0.14 deg appeared around 1.75 eV.