Evidence of electron fractionalization in the Hall coefficient at Mott criticality

Details Evidence of electron fractionalization in the Hall coefficient at Mott criticality Evidence of electron fractionalization in the Hall coefficient at Mott criticality

2011-04-18

arxiv.org/abs/1104.3368v2

Phys. Rev. B 84, 085111 (2011)

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

Hall coefficient implies the mechanism for reconstruction of a Fermi surface, distinguishing competing scenarios for Mott criticality such as electron fractionalization, dynamical mean-field theory, and metal-insulator transition driven by symmetry breaking. We find that electron fractionalization leaves a signature for the Hall coefficient at Mott criticality in two dimensions, a unique feature differentiated from other theories. We evaluate the Hall coefficient based on the quantum Boltzman equation approach, guaranteeing gauge invariance in both longitudinal and transverse transport coefficients.

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