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@ARTICLE{Hell:280781,
author = {Hell, M. and Sothmann, B. and Leijnse, M. and Wegewijs, M.
R. and König, J.},
title = {{S}pin resonance without spin splitting},
journal = {Physical review / B},
volume = {91},
number = {19},
issn = {1098-0121},
address = {College Park, Md.},
publisher = {APS},
reportid = {FZJ-2016-00537},
pages = {195404},
year = {2015},
abstract = {We predict that a single-level quantum dot without
discernible splitting of its spin states develops a
spin-precession resonance in charge transport when embedded
into a spin valve. The resonance occurs in the generic
situation of Coulomb blockaded transport with ferromagnetic
leads whose polarizations deviate from perfect antiparallel
alignment. The resonance appears when electrically tuning
the interaction-induced exchange field perpendicular to one
of the polarizations—a simple condition relying on vectors
in contrast to usual resonance conditions associated with
energy splittings. The spin resonance can be detected by
stationary dI/dV spectroscopy and by oscillations in the
time-averaged current using a gate-pulsing scheme. The
generic noncollinearity of the ferromagnets and junction
asymmetry allow for an all-electric determination of the
spin-injection asymmetry, the anisotropy of spin relaxation,
and the magnitude of the exchange field. We also investigate
the impact of a nearby superconductor on the resonance
position. Our simplistic model turns out to be generic for a
broad class of coherent few-level quantum systems.},
cin = {PGI-2},
ddc = {530},
cid = {I:(DE-Juel1)PGI-2-20110106},
pnm = {141 - Controlling Electron Charge-Based Phenomena
(POF3-141)},
pid = {G:(DE-HGF)POF3-141},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000353966300006},
doi = {10.1103/PhysRevB.91.195404},
url = {https://juser.fz-juelich.de/record/280781},
}