Small Fermi Surfaces and Strong Correlation Effects in Dirac Materials with Holography

Understand

Recent discovery of transport anomaly in graphene demonstrated that a system known to be weakly interacting may become strongly correlated if system parameter(s) can be tuned such that fermi surface is sufficiently small.

• We study the strong correlation effects in the transport coefficients of Dirac materials doped with magnetic impurity under the magnetic field using holographic method.
• The experimental data of magneto-conductivity are well fit by our theory, however, not much data are available for other transports of Dirac material in such regime.
• Therefore, our results on heat transport,thermo-electric power and Nernst coefficients are left as predictions of holographic theory for generic Dirac materials in the vicinity of charge neutral point with possible surface gap.