摘要
在９０～３００Ｋ温度范围测量和研究了组分为０．２≤ｘ≤０．６的稀磁半导体Ｚｎ１－ｘＭｎｘＴｅ的法拉第旋转随入射光子能量和组分的变化．利用单振子模型获得了激子能量与组分的关系．还研究了法拉第旋转随温度的变化，得到激子能量的温度系数为－７．３×１０－６ｅＶ／Ｋ（ｘ＝０．３），首次从法拉第旋转测量获得了该晶体的居里温度．
Faraday rotation as a function of photon energy and composition was measured and studied for Zn1-xMnxTe with 0≤x≤0. 6 at a temperature range from 90K to 300K.Exciton energy as a function of composition was obtained by using a single -oscillator model. Faraday rotation as a function of temperature was investigated. The temperature coefficient of the exciton energy was found to be - 7. 3× 10-4eV/K for x= 0. 3. The Curie temperature was obtained from Faraday rotation measurement for the first time.
出处
《红外与毫米波学报》
SCIE
EI
CAS
CSCD
北大核心
1995年第3期211-215,共5页
Journal of Infrared and Millimeter Waves
基金
国家自然科学基金
关键词
稀磁半导体
巨法拉第旋转
激子能量
diluted magnetic semiconductors,giant Faraday rotatio, exciton erergy.
