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Tight-binding Rashba model and statistical field theory by Schober, G. A. H.; Giering, K. -U.; Scherer, M. M.; Honerkamp, C.; Salmhofer, M. is a scholarly article available to read on EtoBox.

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This document contains information supplementary to the article [1], but it is self-contained and can be read independently as a pedagogical review. In the first part, we explain our conventions for the tight-binding description of electronic states on the hexagonal Bravais lattice in two dimensions. We derive the Rashba spin splitting from elementary symmetry conditions, and subsequently construct a minimal tight-binding model which displays Rashba spin splitting near the center of the Brillouin zone. Furthermore, we derive the corresponding symmetry conditions for a two-particle interaction in a second-quantized framework. In the second part, we describe our conventions for the temperature Green functions, in terms of which the renormalization group equations in [1] have been formulated. We also provide a brief summary of the most important definitions and properties of temperature Green functions. [1] G. A. H. Schober, K.-U. Giering, M. M. Scherer, C. Honerkamp, and M. Salmhofer, arXiv:1409.7087.

Author

Schober, G. A. H.; Giering, K. -U.; Scherer, M. M.; Honerkamp, C.; Salmhofer, M.

Published

2015

Language

EN