Magnetic-Field-Induced Mott Transition in a Quasi-Two-Dimensional Organic Conductor

Details Magnetic-Field-Induced Mott Transition in a Quasi-Two-Dimensional Organic Conductor Magnetic-Field-Induced Mott Transition in a Quasi-Two-Dimensional Organic Conductor

2004-09-17

arxiv.org/abs/cond-mat/0409437v2

Phys. Rev. Lett. 93, 127001 (2004)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.93.127001

We investigated the effect of magnetic field on the highly correlated metal near the Mott transition in the quasi-two-dimensional layered organic conductor, $\kappa$-(BEDT-TTF)$_{2}$Cu[N(CN)$_{2}$]Cl, by the resistance measurements under control of temperature, pressure, and magnetic field. It was demonstrated that the marginal metallic phase near the Mott transition is susceptible to the field-induced localization transition of the first order, as was predicted theoretically. The thermodynamic consideration of the present results gives a conceptual pressure-field phase diagram of the Mott transition at low temperatures.

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