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New possibilities of Hall method for metastable centers investigation in acousto-optical crystals

In this paper we propose the new method of ultrasonic sensitive centers study. The semiconductor samples are measure by Hall effect method and simotaneously are exposed to ultrasonic treatment. Ultrasound acoustoactivates any centers which don't be activated under ordinary conditions and can't be displayed by the ordinary Hall method. Such temperatures (80:350 K) investigation with ultrasonic influence (time and amplitude dependences also) significantly increases and completes Hall method possibilities. The crystals of neutrontrasmutation dopes Ge:Sb were studied.