Abstract

We found bulk n-GaAs layers grown by liquid phase epitaxy to be irregularly stressed. Deformation created by this stress causes a small but detectable quadrupole splitting of Zeeman nuclear energy levels. In our work we detected a very weak quadrupole splitting for ⁶⁹Ga and ⁷⁵As isotopes in bulk n-GaAs and obtained the value of the sample deformation. To this end, we used a new method that we call warm-up spectroscopy of nuclear spins in weak external magnetic fields.

中文翻译：

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热光谱法测定n-GaAs体中四极分裂

摘要

我们发现液相外延生长的大块n -GaAs层受到不规则的应力作用。由这种应力引起的变形会引起塞曼核能级小的但可检测的四极分裂。在我们的工作中，我们检测到n -GaAs体中⁶⁹ Ga和⁷⁵ As同位素的非常弱的四极分裂，并获得了样品变形的值。为此，我们使用了一种称为微弱外部磁场中的核自旋的热光谱的新方法。