Long-lived non-equilibrium superconductivity in a non-centrosymmetric Rashba semiconductor
| Autor: | Abdur Rehman Jalil, Vijay Narayan, Martin Lanius, Detlev Grützmacher, Peter Schüffelgen, C. J. B. Ford, Philipp Verpoort, J. R. A. Dann, Gregor Mussler, Dirk Backes, Gareth Conduit |
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| Přispěvatelé: | Narayan, Vijay [0000-0002-0813-2572], Verpoort, Philipp [0000-0003-1319-5006], Dann, James [0000-0002-1668-4385], Ford, Christopher [0000-0002-4557-3721], Conduit, Gareth [0000-0003-3807-6361], Apollo - University of Cambridge Repository |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Superconductivity
Physics Work (thermodynamics) cond-mat.supr-con Condensed matter physics business.industry Scattering Condensed Matter - Superconductivity Point reflection Non-equilibrium thermodynamics FOS: Physical sciences 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Superconductivity (cond-mat.supr-con) Semiconductor Orders of magnitude (time) Condensed Matter::Superconductivity 0103 physical sciences ddc:530 010306 general physics 0210 nano-technology business |
| Zdroj: | Physical review / B 100(2), 024504 (2019). doi:10.1103/PhysRevB.100.024504 |
| Popis: | We report non-equilibrium magnetodynamics in the Rashba-superconductor GeTe, which lacks inversion symmetry in the bulk. We find that at low temperature the system exhibits a non-equilibrium state, which decays on time scales that exceed conventional electronic scattering times by many orders of magnitude. This reveals a non-equilibrium magnetoresponse that is asymmetric under magnetic field reversal and, strikingly, induces a non-equilibrium superconducting state distinct from the equilibrium one. We develop a model of a Rashba system where non-equilibrium configurations relax on a finite timescale which captures the qualitative features of the data. We also obtain evidence for the slow dynamics in another non-superconducting Rashba system. Our work provides novel insights into the dynamics of non-centrosymmetric superconductors and Rashba systems in general. EPSRC, Royal Society, DFG |
| Databáze: | OpenAIRE |
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