Relativistic single-site Green function for general potentials
- 15 February 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 45 (7) , 3271-3278
- https://doi.org/10.1103/physrevb.45.3271
Abstract
The fully relativistic single-site Green function is derived for generally shaped and magnetically polarized cell potentials. It is shown that the right- and left-hand-side (i.e., ket and bra) solutions of the Dirac equations are the necessary ingredients and their generalized Wronskian relation provides important identities, which play a decisive role in the construction of the Green function.Keywords
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