Topological insulators/superconductors
Topological Insulators and Superconductors
... pointlike topological defects, and that they obey non-Abelian ex- change statistics, despite the triviality of ...2 topological index that locates the zero modes in a generic 3D BdG ...
195
Interfaces of topological insulators and superconductors
... Hence, it follows that the current-phase relation for Majorana particles is 4π periodic as well. This can be interpreted as follows: in the conventional 2π periodic case, Cooper pairs (charge 2e) tunnel. Majorana ...
124
Topological Phases of Matter: Exactly Solvable Models and Classification
... of topological insulators and superconductors [24–27, 30, 31] demon- strates that a fermionic system can exhibit nontrivial topological properties if the fermions occupy a band structure with ...
123
Scanning Tunneling Microscopy Studies of Topological Insulators Grown by Molecular Beam Epitaxy
... STM is a surface sensitive technique based on the concept of quantum tunneling. The atomically resolved structure of a surface can be obtained by monitoring the tunneling current in an STM. Besides its unprecedented ...
5
THE NEW STATE OF MATTER - TOPOLOGICAL INSULATORS AND QUANTUM PHASE TRANSITION
... of topological insulators and topological superconductors is now one of the most active fields of research in condensed matter physics, developing at a rapid ...classified topological ...
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Signatures of Topological Superconductors
... 2D topological insulators[2, 9, 82], we want to ask how we unambiguously reveal topological superconductivity if it indeed appears in such a set ...2D topological insulators, the ...
136
Topological Insulators: Tight Binding Models and Surface States
... assign topological invariants to physical systems in the same way as one does for topological ...so-called topological phase transition. The discovery of topological phases was quite ...
61
Ferromagnetism of magnetically doped topological insulators in CrxBi2− xTe3 thin films
... were observed. The Curie temperature, coercivity, and remnant Hall resistance of thin films increase with increasing Cr concentration. The Arrott-Noakes plot demonstrates that the critical mechanism of the ferromagnetism ...
7
Topological properties of a dense atomic lattice gas
... the topological properties of a two-dimensional lattice of atoms where long-range in- teractions arise intrinsically via coherent light scattering between internal atomic states ...
6
Spin pumping and inelastic electron tunneling spectroscopy in topological insulators
... large enough to produce spin pumping the spin of the magnetic impurity is driven away from the anisotropy axis. This breaks the topological protection of the helical edge states and the conductance steps reappear. ...
5
Bound States and Supercriticality in Graphene-Based Topological Insulators
... defined in Equation (11) conserves both (total and spin) angular currents, while the transformation in Equation (10) reverses the total current but conserves the spin current. Therefore, at any energy, eigenstates ...
15
Nanomaterials of the topological crystalline insulators, Pb1–xSnxTe and Pb1–xSnxSe
... tally to exhibit metallic gapless surface states, typical of TI’s. Prompted by the discovery of the 2D and 3D TIs, there has since been a focus to discover new materials with topologically protected states. This has led ...
15
Quantum effects in electrical transport properties of Bismuth chalcogenides Topological Insulators
... Topological insulators (TIs) are celebrated novel materials with a peculiar band structure that features a gap for bulk states but may also host spin-polarised surface conducting states, topo- logically ...
5
Scanning Tunnelling Spectroscopic Studies of Dirac Fermions in Graphene and Topological Insulators
... strong topological insulators (STI) [2- 6], have emerged as a new paradigm in condensed matter for investigating the topological phases of massless and massive Dirac ...the topological ...
7
Andreev reflection in two dimensional topological insulators with either conserved or broken time reversal symmetry
... edge and two right movers at the other, exactly as the integer quantum Hall states. We find that for both these cases, the edge modes lead to a perfect Andreev reflection for electrons with energy smaller than the ...
5
Surface plasmon on topological insulator/dielectric interface enhanced ZnO ultraviolet photoluminescence
... It has recently been predicted that the surface plasmons are allowed to exist on the interface between a topological insulator and vacuum. Surface plasmons can be employed to enhance the optical emission from ...
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Critical Temperature in Bulk Ultrafine Grained Superconductors of Nb, V, and Ta Processed by High Pressure Torsion
... nanostructured superconductors provide a new route to control superconducting property, because ultra fi ne-grain structures with a high density of grain boundaries, dislocations, and other crystalline defects ...
10
A Theoretical Study of Super Fluidity in Spin-orbit Coupled Bose-Einstein Condensate
... with pair of lasers. Such coupling has not been realized previously for ultracold atomic gases or any bosonic system. Furthermore, in the presence of laser coupling, the interactions between the two dressed atomic spin ...
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Electronic Transport Properties of Two-Dimensional Semiconductors and Topological Insulators with Device Applications.
... Topological insulators (TI), a new quantum state of matter, have been identified as promising ma- terials for a new platform for coherent spin-polarized ...dimensional topological insulators ...
120
Topological exciton Fermi surfaces in two-component fractional quantized Hall insulators
... tionalized nature of even-denominator FQH states guarantees that in addition to the familiar bosonic exciton (b-Exc), the system also hosts a topologically non-trivial fermionic exci- ton (f-Exc). If the f-Exc is lower ...
6