Renormalization group study of intervalley scattering and valley splitting in a two-valley system

Details Renormalization group study of intervalley scattering and valley splitting in a two-valley system Renormalization group study of intervalley scattering and valley splitting in a two-valley system

2009-09-30

arxiv.org/abs/0910.0037v1

Phys.Rev.B81:035306,2010

Physics

Condensed Matter

Disordered Systems and Neural Networks

Scientific paper

Renormalization group equations are derived for the case when both valley splitting and intervalley scattering are present in a two-valley system. A third scaling parameter is shown to be relevant when the two bands are split but otherwise distinct. The existence of this parameter changes the quantitative behavior at finite temperatures, but the qualitative conclusions of the two-parameter theory are shown to be unaffected for realistic choice of parameters.

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