Binding energy of an impurity in an ionic crystal
- 15 February 1976
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 13 (4) , 1830-1835
- https://doi.org/10.1103/physrevb.13.1830
Abstract
An analysis is made of the binding energy of an impurity in an ionic crystal in terms of the frequency shifts in the LO branch, arising out of the coupling of the polar modes through the polarization of the impurity. Estimates are obtained for the energy shifts of both tightly-bound and loosely-bound impurities. The connection of this approach with the bound-polaron problem is discussed.Keywords
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