In this non-degenerate mixture at charge neutrality, conductivity is temperature-independent at low T from Dirac carriers but acquires a negative correction from scattering with thermally excited massive holes that strengthens with temperature and is stronger for short-range interactions.
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Interaction-driven transport in a non-degenerate mixture of Dirac and massive fermions at charge neutrality point
In this non-degenerate mixture at charge neutrality, conductivity is temperature-independent at low T from Dirac carriers but acquires a negative correction from scattering with thermally excited massive holes that strengthens with temperature and is stronger for short-range interactions.