TY  - JOUR
AU  - Narayan, V.
AU  - Verpoort, P. C.
AU  - Dann, J. R. A.
AU  - Backes, D.
AU  - Ford, C. J. B.
AU  - Lanius, M.
AU  - Jalil, A. R.
AU  - Schüffelgen, P.
AU  - Mussler, G.
AU  - Conduit, G. J.
AU  - Grützmacher, D.
TI  - Long-lived nonequilibrium superconductivity in a noncentrosymmetric Rashba semiconductor
JO  - Physical review / B
VL  - 100
IS  - 2
SN  - 2469-9950
CY  - Woodbury, NY
PB  - Inst.
M1  - FZJ-2019-03984
SP  - 024504
PY  - 2019
AB  - We report nonequilibrium magnetodynamics in the Rashba-superconductor GeTe, which lacks inversion symmetry in the bulk. We find that at low temperature the system exhibits a nonequilibrium state, which decays on timescales that exceed conventional electronic scattering times by many orders of magnitude. This reveals a nonequilibrium magnetoresponse that is asymmetric under magnetic-field reversal and, strikingly, induces a nonequilibrium superconducting state distinct from the equilibrium one. We develop a model of a Rashba system in which nonequilibrium configurations relax on a finite timescale that captures the qualitative features of the data. We also obtain evidence for the slow dynamics in another nonsuperconducting Rashba system. Our work provides insights into the dynamics of noncentrosymmetric superconductors and Rashba systems in general.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000474884800002
DO  - DOI:10.1103/PhysRevB.100.024504
UR  - https://juser.fz-juelich.de/record/864075
ER  -