Mott Transition between a Spin-Liquid Insulator and a Metal in Three Dimensions
Author(s)Kim, Yong Baek; Paramekanti, Arun; Senthil, Todadri; Podolsky, Daniel
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We study a bandwidth controlled Mott metal-insulator transition (MIT) from a Fermi-liquid metal to a quantum spin-liquid insulator in three dimensions. Using a slave rotor approach including gauge fluctuations, we obtain a continuous MIT and discuss finite temperature crossovers in its vicinity. We show that the specific heat C-T lnln(1/T) at the MIT and that the metallic state near the MIT should exhibit a ‘‘conductivity minimum’’ as a function of temperature. We suggest Na[subscript 4]Ir[subscript 3]O[subscript 8] as a candidate to test our predictions and compute its electron spectral function at the MIT.
DepartmentMassachusetts Institute of Technology. Department of Physics
Physical Review Letters
American Physical Society
Podolsky, Daniel et al. “Mott Transition between a Spin-Liquid Insulator and a Metal in Three Dimensions.” Physical Review Letters 102.18 (2009): 186401. (C) 2010 The American Physical Society.
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