Relativistic theory of Tamm surface states
- 1 October 1969
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 2 (10) , 1802-1807
- https://doi.org/10.1088/0022-3719/2/10/314
Abstract
A relativistic study is made of the surface states of one-dimensional heavy atomic crystals. Adopting Tamm's procedure, the Dirac equation is solved for a perturbed Kronig-Penney potential. Depending on certain existence conditions, the surface states can be classified into two categories, called relativistic Tamm and Dirac surfaces states. In the non-relativistic limit, the Dirac states disappear and the relativistic Tamm states become the well-known Tamm surface states. A detailed discussion is given of the surface energy spectrum.Keywords
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