Publication Date:
2016-07-19
Description:
Author(s): Kavita Mehlawat and Yogesh Singh The Kitaev model is a toy model for S = 1 2 moments on a honeycomb lattice, which interact via strongly bond-dependent Ising-like interactions. In real material candidates like Na 2 IrO 3 , small Heisenberg interactions are also present in addition to dominant Kitaev interactions. The doped Kitaev-Heisenberg model has been predicted to show unconventional superconductivity and spin or charge density wave, and bond-order instabilities. In this paper, the authors have succeeded in surface-doping Na 2 IrO 3 crystals by argon plasma etching and in changing the conductivity by several orders of magnitude. The doped samples show several unusual transport behaviors, including first order spin or charge density wave-like transitions. [Phys. Rev. B 94, 041109(R)] Published Mon Jul 18, 2016
Keywords:
Electronic structure and strongly correlated systems
Print ISSN:
1098-0121
Electronic ISSN:
1095-3795
Topics:
Physics
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