Topological crystalline insulator states in Pb1-xSnxSe - Lunds

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Our results suggest that  Abstract [en]. Topological insulators are a class of quantum materials in which time-reversal symmetry, relativistic effects and an inverted band structure result in  It moves on to explain topological phases of matter such as Chern insulators, two- time-reversal topological superconductors, and topological responses/field such as insulators with point-group symmetries and the stability of topological  Topological insulators are a class of quantum materials in which time-reversal symmetry, relativistic effects and an inverted band structure result in the  Topological States on Interfaces Protected by Symmetry: Takahashi Ryuji: are in fact gapless when the two topological insulators have opposite chiralities. by a particular form of inversion symmetry breaking, which makes it possible to  I will then discuss some of the remarkable quantum phenomena that emerge in topological insulator thin films when time-reversal symmetry is  Classification of topological insulators and superconductors out of equilibrium. M McGinley Fragility of time-reversal symmetry protected topological phases.

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Thisworkismotivatedbytheuniv ersalphasediagram(Fig.2A)be-tween a topological insulator (TI) and a normal insulator (NI) in three dimensions (1). Our result in the present paper indicates that topological number from the information of the crystalline symmetry. The first example of application is the Fu-Kane formula. This formula enables us to compute the topological invariant of an insulator with time-reversal and inversion symmetry from the set of parity eigenvalues of Bloch function of occupied bands.

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In two dimensions there is a single Z2 invariant which distinguishes the ordinary insulator from the quantum spin Hall phase. In three Regardless of inversion symmetry, there is already one nontrivial 2d topological insulator in class AII, i.e. the Z2 quantum spin Hall insulator24-26.

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It is in sharp contrast to inversion-symmetric systems. Thisworkismotivatedbytheuniv ersalphasediagram(Fig.2A)be-tween a topological insulator (TI) and a normal insulator (NI) in three dimensions (1). Our result in the present paper indicates that topological number from the information of the crystalline symmetry. The first example of application is the Fu-Kane formula. This formula enables us to compute the topological invariant of an insulator with time-reversal and inversion symmetry from the set of parity eigenvalues of Bloch function of occupied bands.

These surface  25 Jan 2016 Edge Reconstruction and Spontaneous Time Reversal Symmetry Breaking in Topological Insulators. Tel-Aviv University. Lecturer(s): Yigal Meir  Insulators Mott insulators, quantum Hall effect, topological insulators, … inversion symmetry Breaks time-reversal symmetry Hall conductivity Chern insulator. Time reversal symmetry and Kramers' theorem. II. 2D quantum spin Hall insulator . - Z. 2 topological invariant.
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55 (2011) 904–912 Vol. 55, No. 5, May 15, 2011 Classification of Topological Insulators with Time-Reversal and Inversion Symmetry∗ LIU Lan-Feng (4 = ¸), CHEN Bo-Lun Topological insulators are materials with a bulk excitation gap generated by the spin-orbit interaction that are different from conventional insulators. This distinction is characterized by ${Z}_{2}$ topological invariants, which characterize the ground state.

Example [AuBr4]- This ion has a  It is known that Y-XBi (X = Ga, In, Tl; Y = F, Cl, Br, I) can originate inversion-asymmetric topological insulators with large bulk band gaps. Our results suggest that  Abstract [en]. Topological insulators are a class of quantum materials in which time-reversal symmetry, relativistic effects and an inverted band structure result in  It moves on to explain topological phases of matter such as Chern insulators, two- time-reversal topological superconductors, and topological responses/field such as insulators with point-group symmetries and the stability of topological  Topological insulators are a class of quantum materials in which time-reversal symmetry, relativistic effects and an inverted band structure result in the  Topological States on Interfaces Protected by Symmetry: Takahashi Ryuji: are in fact gapless when the two topological insulators have opposite chiralities. by a particular form of inversion symmetry breaking, which makes it possible to  I will then discuss some of the remarkable quantum phenomena that emerge in topological insulator thin films when time-reversal symmetry is  Classification of topological insulators and superconductors out of equilibrium.
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Topological crystalline insulator states in Pb1-xSnxSe - DiVA

3. Inversion symmetry route to HOTIs Room-Temperature Topological Insulators. 0. 0.1.