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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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Abstract
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.
Date issued
2009-05
URI
http://hdl.handle.net/1721.1/51331
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
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.
Version: Final published version
ISSN
0031-9007

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