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A full-potential approach to the relativistic single-site Green's function

Research paper by Xianglin Liu, Yang Wang, Markus Eisenbach, G. Malcolm Stocks

Indexed on: 05 Mar '16Published on: 05 Mar '16Published in: Physics - Materials Science



Abstract

One major purpose of studying the single-site scattering problem is to obtain the scattering matrices and differential equation solutions indispensable to multiple scattering theory (MST) calculations. On the other hand, the single-site scattering itself is also appealing because it reveals the physical environment experienced by electrons around the scattering center. In this paper we demonstrate a new formalism to calculate the relativistic full-potential single-site Green's function. We implement this method to calculate the single-site density of states and electron charge densities. The code is rigorously tested and with the help of Krein's theorem, the relativistic effects and full potential effects in group V elements and noble metals are thoroughly investigated.