2016/06/30 by Kavita Mehlawat, Yogesh Singh · 6 citations
Materials Science · Mathematics · Physics and Astronomy · #Advanced Condensed Matter Physics #Algorithm #Magnetic and transport properties of perovskites and related materials #Mathematics #Multiferroics and related materials #Order (exchange) #Physics #cond-mat.mtrl-sci #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.94.041109
published in Physical review. B./Physical review. B 94(4) (American Physical Society) · 6 pages, 2 Tables, 5 figures
openalex publication_date 2016/07/18 · openalex created_date 2016/07/22 · arxiv created 2017/05/26 · arxiv updated 2017/05/29 · openalex updated_date 2026/08/05
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 Na2IrO3, 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 Na2IrO3 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.