Summary
The results of Chap. 6 are generalized to three-dimensional tetravalent real solids, which are characterized mainly by two dimensionless parameters: the polarity index, ap, and the metallicity index, am. Depending on their values, we may have metallic or covalent or ionic behavior (see Fig. 7.4). The important concepts of holes, mass tensors, electronic and phononic DOS, impurity levels in the gap, and doping are introduced and/or examined. Tables of values of important quantities for various semiconductors are given.
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Further Reading
For the concentrations of electrons and holes, the concept of hole, and the concept of effective mass and effective Hamiltonian, see any book on solid state physics, e.g., Ashcroft and Mermin [SS75], pp. 221-229.
The metallicity, polarity and related concepts, and their relations are treated in the book by Harrison [SS76], pp. 38-46 and 552-553.
Semiconductor data can be found in the book by Madelung [D3].
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Economou, E.N. (2010). Semiconductors and Other Tetravalent Solids. In: The Physics of Solids. Graduate Texts in Physics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-02069-8_7
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DOI: https://doi.org/10.1007/978-3-642-02069-8_7
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