Electronic states in a disordered metal: Magnetotransport in doped germanium.
نویسندگان
چکیده
We observe a sharp feature in the ultra-low-temperature magnetoconductivity of degenerately doped Ge:Sb at H-25 kOe, which is robust up to at least three times the critical density for the insulator-metal transition. This field corresponds to a low-energy scale characteristic of the special nature of antimony donors in germanium. Its presence and sensitivity to uniaxial stress confirm the notion of metallic impurity bands in doped germanium.
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ورودعنوان ژورنال:
- Physical review. B, Condensed matter
دوره 42 17 شماره
صفحات -
تاریخ انتشار 1990