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[1506.05084] Electronic structure of topological ...
Jun 16, 2015 · In the case of the Fu-Kane model we also find that, irrespective of the lattice geometry, the Majorana band becomes completely flat at the so called neutrality point (chemical potential coincident with the Dirac point) where the model exhibits an extra chiral symmetry.
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Graphene and the Quantum Spin Hall Effect
Fu, Kane & Mele PRL, 106803 (07), cond-mat/0611341 Moore & Balents cond-mat/0607314; Roy, cond-mat/0607531 Model system: Distorted diamond lattice with spin orbit interaction †† 12,, ( )aiia SO i j ia i j H =+ + ⋅×∑∑ttcc i csddcδλ+ GGG •δt a=0 is a critical point with 3D Dirac points at 3 X points. •δt a (a=1,..,4) opens gaps leading
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Tight-binding model for a topological insulator slab ...
Tight-binding model for a topological insulator slab [ARCHIVED] DISCLAIMER This is bad code kept only for reproducibility reasons (see below) Microscopic tight-binding model of topological a insulator slab as in: G. Siroki, P. D. Haynes, D. K. K. Lee and V. Giannini Phys. Rev. Mater. 1, 024201 (2017)
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Z2 Structure of the Quantum Spin Hall Effect
• Fu/Kane/Mele model (2006): i d 1 j d 2 diamond lattice e.g. δ=0: 3 3D Dirac points δ>0: topological insulator δ<0: “WTI”=trivial insulator • with appropriate sign convention: cond-mat/0607699 (Our paper: cond-mat/0607314)
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Chern and Fu–Kane–Mele Invariants as Topological Obstructions
Aug 03, 2017 · More recently, in the framework of time-reversal symmetric topological insulators and quantum spin Hall systems, a new topological classification has been proposed by Fu, Kane …
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Tight-binding model for topological nanoparticles [ARCHIVED]
Tight-binding model for topological nanoparticles [ARCHIVED] DISCLAIMER This is bad code kept only for reproducibility reasons (see below) Microscopic tight-binding model applied to topological insulator nanoparticles as in: G. Siroki, P. D. Haynes, D. K. K. Lee and …
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[0707.1692] Superconducting proximity effect and Majorana ...
Jul 11, 2007 · Authors: Liang Fu, C.L. Kane. Download PDF Abstract: We study the proximity effect between an s-wave superconductor and the surface states of a strong topological insulator. The resulting two dimensional state resembles a spinless p_x+ip_y superconductor, but does not break time reversal symmetry. This state supports Majorana bound states at ...
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Topological Insulators in 2D and 3D
Simplest model: |Haldane|2 (conserves S z) Haldane * Haldane 0 0 0 H H H H ... Fu, Kane „08 E F. Surface Quantum Hall Effect 2 1 xy 2 e n h
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Phys. Rev. Lett. 98, 106803 (2007) - Topological ...
Mar 07, 2007 · Topological Insulators in Three Dimensions Liang Fu, C. L. Kane, and E. J. Mele Phys. Rev. Lett. 98, 106803 – Published 7 March 2007
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