Computational Design of Axion Insulators Based on 5d Spinel Compounds

被引：114
作者：
Wan, Xiangang [1 ,2 ]
Vishwanath, Ashvin [3 ,4 ]
Savrasov, Sergey Y. [5 ]
机构：
[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
[2] Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China
[3] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[4] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA
[5] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA
来源：
PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 14期
关键词：
SINGLE DIRAC CONE; TOPOLOGICAL INSULATORS; ELECTRONIC-STRUCTURE; SURFACE; PHASE; FIELD;
D O I：
10.1103/PhysRevLett.108.146601
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Based on density functional calculation using the local density approximation + U method, we predict that osmium compounds such as CaOs2O4 and SrOs2O4 can be stabilized in the geometrically frustrated spinel crystal structure. They show ferromagnetic order in a reasonable range of the on-site Coulomb correlation U and exotic electronic properties, in particular, a large magnetoelectric coupling characteristic of axion electrodynamics. Depending on U, other electronic phases including a 3D Weyl semimetal and Mott insulator are also shown to occur.
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页数：5
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  • [1] First-principles calculations of the electronic structure and spectra of strongly correlated systems: The LDA+U method
    Anisimov, VI
    Aryasetiawan, F
    Lichtenstein, AI
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1997, 9 (04) : 767 - 808
  • [2] Ab initio Studies on the Interplay between Spin-Orbit Interaction and Coulomb Correlation in Sr2IrO4 and Ba2IrO4
    Arita, R.
    Kunes, J.
    Kozhevnikov, A. V.
    Eguiluz, A. G.
    Imada, M.
    [J]. PHYSICAL REVIEW LETTERS, 2012, 108 (08)
  • [3] Quantum spin Hall effect and topological phase transition in HgTe quantum wells
    Bernevig, B. Andrei
    Hughes, Taylor L.
    Zhang, Shou-Cheng
    [J]. SCIENCE, 2006, 314 (5806) : 1757 - 1761
  • [4] The electronic properties of graphene
    Castro Neto, A. H.
    Guinea, F.
    Peres, N. M. R.
    Novoselov, K. S.
    Geim, A. K.
    [J]. REVIEWS OF MODERN PHYSICS, 2009, 81 (01) : 109 - 162
  • [5] Kitaev-Heisenberg Model on a Honeycomb Lattice: Possible Exotic Phases in Iridium Oxides A2IrO3
    Chaloupka, Jiri
    Jackeli, George
    Khaliullin, Giniyat
    [J]. PHYSICAL REVIEW LETTERS, 2010, 105 (02)
  • [6] Helical magnetic state in the distorted triangular lattice of α-CaCr2O4
    Chapon, L. C.
    Manuel, P.
    Damay, F.
    Toledano, P.
    Hardy, V.
    Martin, C.
    [J]. PHYSICAL REVIEW B, 2011, 83 (02):
  • [7] Massive Dirac Fermion on the Surface of a Magnetically Doped Topological Insulator
    Chen, Y. L.
    Chu, J. -H.
    Analytis, J. G.
    Liu, Z. K.
    Igarashi, K.
    Kuo, H. -H.
    Qi, X. L.
    Mo, S. K.
    Moore, R. G.
    Lu, D. H.
    Hashimoto, M.
    Sasagawa, T.
    Zhang, S. C.
    Fisher, I. R.
    Hussain, Z.
    Shen, Z. X.
    [J]. SCIENCE, 2010, 329 (5992) : 659 - 662
  • [8] Helical magnetism and structural anomalies in triangular lattice α-SrCr2O4
    Dutton, S. E.
    Climent-Pascual, E.
    Stephens, P. W.
    Hodges, J. P.
    Huq, A.
    Broholm, C. L.
    Cava, R. J.
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2011, 23 (24)
  • [9] Topological Kondo Insulators
    Dzero, Maxim
    Sun, Kai
    Galitski, Victor
    Coleman, Piers
    [J]. PHYSICAL REVIEW LETTERS, 2010, 104 (10)
  • [10] Ordering in the pyrochlore antiferromagnet due to Dzyaloshinsky-Moriya interactions
    Elhajal, M
    Canals, B
    Sunyer, R
    Lacroix, C
    [J]. PHYSICAL REVIEW B, 2005, 71 (09)
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