Investigation of band masses and g values of ZnSe by two-photon magnetoabsorption.
Investigation of band masses and g values of ZnSe by two-photon magnetoabsorption.
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通过双光子磁吸收研究 ZnSe 的带质量和 g 值。
DOI：
10.1103/physrevb.31.2379
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
Ch. Uihlein
中科院分区：
文献类型：
--
作者：
H. W. Hölscher;A. Nöthe;Ch. Uihlein
本文报道了ZnSe中2 P激子系统的双光子磁吸收测量。测量在法拉第（k→ π B→）和Voigt组态（k→ π B→）中进行，磁场高达9 T。通过所涉及的两个光子的偏振态（σ+，σ-，σ，π）的各种组合，可以选择性地激发多达22个不同的磁子态。塞曼分裂是高度非线性的，并且严重依赖于有效质量参数和g值。大量的磁性元件允许非常精确地确定所有相关的质量参数（m e*，g c，γ 1，γ 2，γ 3，κ）。本文提出的理论数据是基于有效质量理论的简并带和结果从一组耦合的本征值方程的本征值的数值计算。利用球张量算符，给出了描述电子和空穴在外磁场中运动的哈密顿量。
We present two-photon magnetoabsorption measurements of the 2P-exciton system in ZnSe. The measurements were carried out in Faraday (k→∥ B→) and Voigt configurations (k→⊥ B→) in fields up to 9 T. By various combinations of the polarization states of the two photons involved (σ+, σ−, σ, π), up to 22 different magnetic substates can be selectively excited. The Zeeman splitting is highly nonlinear and critically dependent on the set of effective-mass parameters and g values. The large number of magnetic components allows a very precise determination of all relevant mass parameters (m e*, g c, γ 1, γ 2 γ 3, κ). The theoretical data presented in this paper are based on the effective-mass theory for degenerate bands and result from a numerical calculation of the eigenvalues of a set of coupled eigenvalue equations. The Hamiltonian describing the motion of electron and hole in the presence of an external magnetic field is fully expressed by means of spherical tensor operators.