J−Jcoupling and local-field effects on N-N pair spectra in GaP
J−Jcoupling and local-field effects on N-N pair spectra in GaP
复制标题
GaP 中 N-N 对光谱的 J−J 耦合和局域场效应
DOI：
10.1103/physrevb.25.3987
复制
发表时间：
1982
影响因子：
3.7
通讯作者：
H. Mathieu
中科院分区：
文献类型：
--
作者：
B. Gil;J. Camassel;P. Merle;H. Mathieu
我们提出了一个调查的本地字段分裂的激子状态绑定到NN对在GaP。我们展示了J-J耦合和局域场效应如何竞争给出实验分裂模式。对于所有i≤ 7的N-Ni对，我们推导出（i）J-J耦合的大小和（ii）空穴经历的价带分裂。假设在一阶，孔周围的场是一个纯应变场与周围的NN对晶格的弛豫，我们推导出的剪切分量的变形张量所经历的束缚孔。
We present an investigation of local fields which split the exciton states bound to NN pairs in GaP. We show how both J− J coupling and local-field effects compete to give the experimental splitting pattern. For all N-N i pairs with i≤ 7, we deduce (i) the magnitude of the J− J coupling and (ii) the splitting of the valence band experienced by the hole. Assuming in first order that the field surrounding the hole is a pure strain field associated with the relaxation of lattice around the NN pair, we deduce the shear components of the deformation tensor experienced by the bound hole.