2019
DOI: 10.1103/physrevb.100.121401
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Microscopic dynamics of electron hopping in a semiconductor quantum well probed by spin-dependent photon echoes

Abstract: Spin-dependent photon echoes in combination with pump-probe Kerr rotation are used to study the microscopic electron spin transport in a CdTe/(Cd,Mg)Te quantum well in the hopping regime. We demonstrate that independent of the particular spin relaxation mechanism, hopping of resident electrons leads to a shortening of the photon echo decay time, while the transverse spin relaxation time evaluated from pump-probe transients increases due to motional narrowing of spin dynamics in the fluctuating effective magnet… Show more

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Cited by 11 publications
(6 citation statements)
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“…Optical four-wave-mixing experiments in semiconductors provide access to coherent dynamics of excitons 10 , 22 24 . In photon echo experiments the polarization state of incident photons (circular or linear) allows one to uncover different mechanisms behind the signal formation 25 , 26 . Different levels can be distinguished by the polarization dependence 26 28 .…”
Section: Introductionmentioning
confidence: 99%
“…Optical four-wave-mixing experiments in semiconductors provide access to coherent dynamics of excitons 10 , 22 24 . In photon echo experiments the polarization state of incident photons (circular or linear) allows one to uncover different mechanisms behind the signal formation 25 , 26 . Different levels can be distinguished by the polarization dependence 26 28 .…”
Section: Introductionmentioning
confidence: 99%
“…Optical four-wave-mixing experiments in semiconductors provide access to coherent dynamics of excitons [23][24][25]10 . In photon echo experiments the polarization state of incident photons (circular or linear) allows one to uncover different mechanisms behind the signal formation 26,27 . Different level schemes can be distinguished by the polarization dependence [27][28][29] .…”
Section: Introductionmentioning
confidence: 99%
“…The study of excitons in dual structures deserves additional experimental and theoretical attention. One of the ways of such studies can be time-resolving experiments or methods for observing photon echo (FWM) [20,21] in magnetic fields and for QWs widths where the probability of hybridization causes a possibility of changing the conditions for the unperturbed resonance of the electron states by applying magnetic field.…”
Section: Discussion Of the Experiments And Some Estimates Concerning Ementioning
confidence: 99%