INTERBAND MAGNETO-ABSORPTION AND FARADAY ROTATION IN INSB

INTERBAND MAGNETO-ABSORPTION AND FARADAY ROTATION IN INSB
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DOI:
10.1103/physrev.146.575
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发表时间:
1966-01-01
期刊:
影响因子:
--
通讯作者:
BROWN, RN
BROWN, RN
中科院分区:
其他
文献类型:
--
作者:
PIDGEON, CR;BROWN, RN

文献摘要

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在液氦温度下,使用高达 96.5 kG 的磁场,在纯 n 型 InSb 中观察到直接带间磁光跃迁。区域中心价带和导带的磁能级理论是使用 Luttinger 和 Kohn 方法的修改版进行的。导带和价带之间的相互作用已得到精确处理,以及较高能带对 k 2 阶的影响。已对允许的 (Δ n= 0,− 2) 和翘曲引起的 (Δ n= 2,±4,− 6) 直接价带到导带跃迁的选择规则进行了评估。理论光谱与实验光谱(分别使用法拉第和福伊特构型的圆偏振光和平面偏振光)的比较表明,[110] 和 [100] 晶体方向的磁场具有良好的一致性。得到以下能带参数: 导带有效质量m c= 0.0145 m 0:光孔有效质量m l 。 h.= 0.0160 m 0;重孔有效质量m·h。 h.[100]= 0.32 m 0, m h。 h.[110]= 0.42 m 0, m h。 h.[111]= 0.44 m 0。
Direct interband magneto-optical transitions have been observed in pure n-type InSb at liquid-helium temperature using magnetic fields up to 96.5 kG. The theory of the magnetic levels in the valence and conduction bands at the zone center is carried out using a modification of the method of Luttinger and Kohn. The interaction between conduction and valence bands has been treated exactly, and the effect of higher bands to order k 2. Selection rules have been evaluated for both allowed (Δ n= 0,− 2) and warping-induced (Δ n= 2,±4,− 6) direct valence-to-conduction-band transitions. Comparison of theoretical with experimental spectra (using circular and plane-polarized light in the Faraday and Voigt configurations, respectively) has shown good agreement for the magnetic field in the [110] and [100] crystal directions. The following band parameters are obtained: conduction-band effective mass m c= 0.0145 m 0: light-hole effective mass m l. h.= 0.0160 m 0; heavy-hole effective masses m h. h.[100]= 0.32 m 0, m h. h.[110]= 0.42 m 0, m h. h.[111]= 0.44 m 0.