Effects of disorder in three-dimensionalZ2quantum spin Hall systems
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چکیده
منابع مشابه
Spin-Hall effect in two-dimensional electron systems with Rashba spin-orbit coupling and disorder.
Using the four-terminal Landauer-Bu ttiker formula and Green's function approach, we calculate numerically the spin-Hall conductance in a two-dimensional junction system with the Rashba spin-orbit (SO) coupling and disorder. We find that the spin-Hall conductance can be much greater or smaller than the universal value e/8pi, depending on the magnitude of the SO coupling, the electron Fermi ener...
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A system at filling factor 2/3 could be a candidate for a quantum Hall ferromagnet at integer filling factor of composite fermions. Using exact diagonalization with electrons on a torus we study the transition from the singlet ground state to the polarized ground state at this filling and look for signatures of quantum Hall ferromagnetism. Differences between the fractional and corresponding in...
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K. Nomura,1 Jairo Sinova,2 T. Jungwirth,1,3,4 Q. Niu,1 and A. H. MacDonald1 1Department of Physics, University of Texas at Austin, Austin, Texas 78712-1081, USA 2Department of Physics, Texas A&M University, College Station, Texas 77843-4242, USA 3Institute of Physics, ASCR, Cukrovarnická 10, 162 53 Praha 6, Czech Republic 4School of Physics and Astronomy, University of Nottingham, University Pa...
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In view of recent developments in the investigation on cuprate high- T(c) superconductors and the spin-Peierls compound CuGeO3, we study the effect of dilute impurity doping on the spin-Peierls state in quasi-one-dimensional systems. We identify a common origin for the emergence of antiferromagnetic order upon the introduction of static vacancies and superconductivity for mobile holes.
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2009
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.79.045321