Spin orbit coupling and topological phases
- HOME | Vic KT Law#39;s Condensed Matter Theory Group.
- Long Zhang - Google Scholar.
- Topological Phase Control of Surface States in Bi2Se3 via Spin-Orbit.
- PDF Spin-Orbit Coupling and Quantum Spin Hall Effect for Neutral Atoms.
- Signatures of Spin-Orbit Coupling and Charge Localization in CrIr2Sn10.
- Excited-state quantum phase transitions in spin-orbit-coupled Bose gases.
- Topological metallic phases in spin-orbit coupled bilayer systems.
- Topological phase transition in layered magnetic compound MnSb2Te4.
- Three-dimensional photonic topological insulator without spin-orbit.
- Review article: Spin-orbit Coupling and Topological Phases for.
- Review Article: Spin-orbit coupling and topological phases for.
- Edge states and topological insulating phases generated by curving a.
- APS -APS March Meeting 2022 - Event - Ultra-strong spin-orbit coupling.
HOME | Vic KT Law#39;s Condensed Matter Theory Group.
#39;Berry phases and associated geometric and topological concepts have transformed our understanding of electronic properties. This book provides a much needed pedagogical exposition with computational instructions which will be very valuable for students and researchers in solid state physics and materials science.#39; Qian Niu - University of Texas.
Long Zhang - Google Scholar.
In quantum physics, the spin-orbit interaction also called spin-orbit effect or spin-orbit coupling is any interaction of a particle#x27;s spin with... | Explore the latest full-text research. Group IV graphene analogues such as stanene, plumbene, etc. have drawn attention because of their large spin-orbit coupling and thus being promising candidates for topological insulator. However, fabrication of these ultrathin monolayers is a daunting task. These novel metallic phases can give rise to various non-trivial topological phases when di erent symmetries are broken, including a Weyl and nodal-line semimetal. Secondly, we provide a generic condition to identify a novel three-dimensional topological semi-metallic phase in materials with strong spin-orbit coupling.
Topological Phase Control of Surface States in Bi2Se3 via Spin-Orbit.
Spin-orbit Coupling and Topolo gical Phases for Ultracold Atoms 7 couple to artificial ma gnetic fields along z and z direction, respectively, leading to a quantum spin Hall effect. Spin-orbit SO coupling is the crucial parameter to drive topological-insulating phases in electronic band models. In particular, the generic emergence of SO coupling involves the Rashba term which fully breaks the SU2 spin symmetry. As soon as interactions are taken into account, however, many theoretical studies have. Abstract We investigate the influence of different spin-orbit couplings on topological phase transitions in the bilayer Kane-Mele model. We find that the competition between intrinsic spin-orbit coupling and Rashba spin-orbit coupling can lead to two dimensional topological metallic states with nontrivial topology.
PDF Spin-Orbit Coupling and Quantum Spin Hall Effect for Neutral Atoms.
As spin-orbit coupling increases with increasing atomic number, compounds featuring heavy elements, such as lead, offer a pathway toward creating new topologically nontrivial materials. By employing a high-pressure flux synthesis method, we synthesized single crystals of Ni 3 Pb 2, the first structurally characterized bulk binary phase in the. E In the absence of spin-orbit coupling, there are two line nodes on the k x mirror plane and two line nodes on the k y mirror plane red loops. In the presence of spin-orbit coupling, each line node reduces into six Weyl nodes small black and white circles. Black and white show the opposite chiral charges of the Weyl nodes.
Signatures of Spin-Orbit Coupling and Charge Localization in CrIr2Sn10.
Spin-orbit coupling and topological phases for ultracold atoms. L Zhang, XJ Liu. Synthetic Spin-Orbit Coupling in Cold Atoms, 1-87, 2018. 18: 2018: The system can#x27;t perform the operation now. Try again later. Articles 1-20. Show more.
Excited-state quantum phase transitions in spin-orbit-coupled Bose gases.
Phase transitions in condensed matter physics generally have been identified with an order parameter that spontaneously breaks the symmetry of the system and develops long range order, such as for the magnetization that develops in a ferromagnet below the curie temperature or the staggered magnetization below the neel temperature in an.
Topological metallic phases in spin-orbit coupled bilayer systems.
The sign is taken when the spin is parallel to the field and when it is antiparallel. This fact called spin splitting implies that the density of states for each level is reduced by a half. Note that E #92;displaystyle #92;Delta E is proportional to the magnetic field so, the larger the magnetic field is, the more relevant is the split. Here, we propose twisted bilayers of the group-IV TMD ZrS2 as a tunable platform to engineer two-dimensional topological quantum phases, instead dominated by strong spin-orbit interactions.... combining geometric frustration and strong spin-orbit coupling to give rise to a moire quantum spin Hall insulator with highly controllable and.
Topological phase transition in layered magnetic compound MnSb2Te4.
We study the influence of negative spin-orbit coupling on the topological phase transition and properties of the topological insulator state in InGaN-based quantum wells grown along c axis of the wurtzite lattice. The realistic eight-band kp method with relativistic and nonrelativistic linear-k terms is employed. Our calculations show that.
Three-dimensional photonic topological insulator without spin-orbit.
Phys. Rev. B 103, 104403 2021 - Electric field induced topological phase transition and large enhancements of spin-orbit coupling and Curie temperature in two-dimensional ferromagnetic semiconductors Abstract Tuning the topological and magnetic properties of materials by applying an electric field is widely used in spintronics. The spin-orbit coupling thus induced/enhanced is essential to the band topologies. Our findings suggest that CrIr 2 Sn 10 could be an ideal platform for exploring the symmetry-protected topological phases and their interplay with electron correlation and magnetism. Cited By. This article has not yet been cited by other publications. This state is equivalent to a topological Kondo lattice model with the spin-orbit coupling, an in-plane magnetic field, and an additional particle-hole symmetry. The flexibility of experimental manipulation in such Rydberg-dressed ferminoic systems therefore becomes a promising system for realizing interesting topological superfluids.
Review article: Spin-orbit Coupling and Topological Phases for.
1 Introduction. The photonic analogy of topological physics is a rapidly developing research area in which geometrical and topological concepts are exploited to control the behavior of light. [] By engineering quot;extrinsicquot; spin-orbit interactions in artificial photonic structures with broken time-reversal symmetry, a variety of fascinating topological phenomena and defects have been.
Review Article: Spin-orbit coupling and topological phases for.
Spin-orbit coupling and topological phases for ultracold atoms. Cold atoms with laser-induced spin-orbit SO interactions provide promising platforms to explore novel quantum physics, in particular the exotic topological phases, beyond natural conditions of solids. The past several years have witnessed important progresses in both theory and.
Edge states and topological insulating phases generated by curving a.
Multiple quantum phases in graphene with enhanced spin-orbit coupling: from the quantum spin Hall regime to the spin Hall effect and a robust metallic state. Physical review letters, 2014. David Soriano.... Competing topological phases in few-layer graphene. By X. Waintal. Emergent phenomena induced by spin- orbit coupling at surfaces and.
APS -APS March Meeting 2022 - Event - Ultra-strong spin-orbit coupling.
Aug 20, 2015 Origin of spinorbit coupling. When an electron with momentum p moves in a magnetic field B, it experiences a Lorentz force in the direction perpendicular to its motion F = e p B/m and. Figure 2a, b illustrate the band dispersions of YbMg 2 Bi 2, without and with spin-orbit coupling SOC, respectively. A Hubbard U parameter of 4 eV is included to describe the localized 4 f. Spin-orbit SO coupling, the interaction between spin and orbital e.g., momentum degrees of freedom of a particle, plays an important role in many topological phases of matter. In ultracold atomic gases, synthetic SO coupling has been realized by coupling atomic hyperfine ground states denoted.
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