Synthetic spin–orbit coupling and the effective Zeeman field of the polariton can both be tuned by modulating the coupling strength between neighboring resonators, allowing for the realization of a large variety of polaritonic topological semimetal bands. Methods for detecting the polaritonic topological ...
Spin–orbit couplingTopological phase transitionWe investigate the topological phase transitions in an anisotropic square-octagon lattice in the presence of spin鈥搊rbit coupling and exchange field. On the basis of the Chern number and spin Chern number, we find a number of topologically distinct ...
Here, we demonstrate that the piezoelectric response can change discontinuously across a topological quantum phase transition in two-dimensional time-reversal invariant systems with spin-orbit coupling, thus serving as a direct probe of the transition. We study all gap closing cases for all 7 plane ...
It is clear that the topological force is an additional term to the conventional force, so that we can divide the total force into two parts: f=fcla+fso where fcla is the force the electron experiencing in classical motion, and fso is the force produced by the spin-orbit coupling.The ...
By computing the Hall conductivity, we have proven the stability of the topological quantum Hall phases created by the adatoms against inhomogeneous spin-orbit coupling. For the case of Pb adatoms, we find that a concentration of 0.1 adatoms per carbon atom generates SOC's of the order of ...
Spinorbitcoupling •Inreality inanatom Finestructuresplitting inbulkmaterial Topologicalquantummatter:•Topologicalinsulators•Topologicalsuperconductor…•MajoranaFermions…•WeylFermion…•…•Moreinterestingphenomena Spinorbitcoupling •Inquantumsimulation Dispersion 1DSpin-Orbitcoupling Theory:Xiong-JunLiu...
At large SOC, a polaron-molecule transition exists, which suggests a phase transition between the topological superfluid state and the normal state for a highly polarized Fermi gas in the thermodynamic limit. As polarization in a Fermi gas with SOC is induced by the effective Zeeman field, we ...
Nonlinear dynamics of topological Dirac fermions in 2D spin-orbit coupled materials 来自 科研支点 喜欢 0 阅读量: 35 作者:RK Malla,WJM Kort-Kamp 摘要: The graphene family materials are two-dimensional staggered monolayers with a gapped energy band structure due to intrinsic spin-orbit coupling. ...
2.1.2. Topological insulators 2.1.3. Magnetic materials 2.1.4. Transition metal dichalcogenides 2.1.5. Interfaces 2.2. Magnetic functional layer for magnetization switching 2.3. Characterization techniques 3. Mechanisms of spin–orbit torque 3.1. Spin Hall effect ...
and atmospheric disturbances. These topological effects are quantified in terms of integer-valued ‘invariants’, such as the Chern number, applicable to the quantum Hall effect, or theZ2invariant suitable for topological insulators. Here, we report the engineering of Rashba spin-orbit coupling for ...