Reactive Hall constant of Strongly Correlated Electrons

Abstract

The zero-temperature Hall response within tight-binding models of correlated electrons is studied. Using the linear response theory and a linearization in the magnetic field B, a general relation for the reactive (zero frequency) Hall constant in the fast (transport) limit is derived, involving only matrix elements between the lowest excited states at B=0; for noninteracting fermions, the Boltzmann expression is reproduced. For a Fermi liquid with a well defined Fermi surface and linear gapless excitations an analogous expression is found more generally. In the specific case of quasi-one-dimensional correlated systems a relation of $R_H^0$ to the charge stiffness D is recovered. Similar analysis is performed and discussed for D and the compressibility.

8 pages, submitted to Phys.Rev.B

References in corpus (1)

• Vanishing Hall Constant in the Stripe Phase of Cuprates

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