Topological metals and finite-momentum superconductors
Noah F. Q. Yuan, Liang Fu
Abstract
We show that the Zeeman field can induce a topological transition in two-dimensional spin-orbit-coupled metals and, concomitantly, a first-order phase transition in the superconducting state involving a discontinuous change of Cooper pair momentum. Depending on the spin-orbit coupling strength, we find different phase diagrams of two-dimensional (2D) superconductors under in-plane magnetic field.
Topics & Concepts
PhysicsZeeman effectSuperconductivityCondensed matter physicsFermi surfaceTopology (electrical circuits)PairingSpin (aerodynamics)Momentum (technical analysis)ElectronQuantum mechanicsMagnetic fieldMathematicsCombinatoricsFinanceThermodynamicsEconomicsTopological Materials and PhenomenaGraphene research and applicationsAdvanced Condensed Matter Physics