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Fermi surfaces and electron–impurity interactions in simple metals
Author(s) -
Foster Howard J.
Publication year - 1969
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560030617
Subject(s) - fermi surface , impurity , condensed matter physics , electron , fermi level , crystal (programming language) , chemistry , potassium , fermi gamma ray space telescope , work (physics) , alkali metal , fermi gas , physics , thermodynamics , quantum mechanics , organic chemistry , computer science , programming language
A review is given of the current status of our work on electron transport properties and Fermi surfaces in simple metals. A simple classical model is proposed to extend existing theory to account for the effects of electron‐impurity interactions on the behavior of magnetoacoustic absorption and the size and shape of the Fermi surface in the alkali metal potassium. The theoretical prediction is compared with measurements of the magnetoacoustic absorptionand Fermi surface diameters in potassium crystals of different impurity levels. An attempt is made to explain, on the basis of the theory of electron–impurity interactions, the decrease by 9% in the Fermi diameter and the departure by 53% in the phase factors of the impure potassium crystal. The results are compared with observations on a zone refined potassium crystal which satisfies the nearly‐free‐electron model.