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Resonant States of Shallow Acceptors in Uniaxially Deformed Germanium

机译:单轴形变锗中浅受体的共振态

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The states of shallow acceptors in uniaxially deformed germanium are studied theoretically. A nonvariational numerical computational method is developed for determining the energy and wave functions of localized states of holes in the acceptor field as well as the states of the continuous spectrum (including resonant impurity states). The dependence of the energy of the lower resonant state on strain is studied. It is found that this state is formed from the excited 4Γ_8~+ state with a binding energy of 1.3 meV (in the absence of deformation) and not from the ground state. The results presented in this work may be useful in the study of the conditions for the generation of far IR radiation in deformed p-Ge, which involves optical transitions between resonant and localized acceptor states.
机译:从理论上研究了单轴变形锗中浅受体的状态。开发了一种用于确定受体场中空穴局部状态的能量和波函数以及连续光谱的状态(包括共振杂质状态)的非变量数值计算方法。研究了较低共振态的能量对应变的依赖性。发现该状态由具有1.3meV的结合能(在不变形的情况下)的激发的4Γ_8〜+状态而非基态形成。这项工作中提出的结果可能在研究变形的p-Ge中产生远红外辐射的条件方面有用,该条件涉及共振态和局部受体态之间的光学跃迁。

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