Renormalization group study of a two-valley system with spin-splitting
Alexander Punnoose
TL;DR
This paper derives renormalization group equations for a two-valley system with spin-splitting, analyzing how spin, valley splittings, and intervalley scattering influence magnetoconductance.
Contribution
It introduces a comprehensive RG framework for two-valley systems with spin-splitting, clarifying the regimes where standard magnetoconductance formulas apply.
Findings
Identified relevant amplitudes in different regimes
Discussed the applicability of standard magnetoconductance formulas
Derived RG equations considering spin and valley splittings
Abstract
Renormalization group equations in a two-valley system with valley-splitting and intervalley scattering are derived in the presence of spin-splitting induced by a parallel magnetic field. The relevant amplitudes in different regimes set by the relative strengths of the spin and valley splittings and the intervalley scattering rate are identified. The range of applicability of the standard formula for the magnetoconductance is discussed.
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