Longitudinal photocurrent spectroscopy of a single GaAs/AlGaAs v-groove quantum wire

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dc.creatorCade, N. I.
dc.creatorHadjipanayi, M.
dc.creatorRoshan, R.
dc.creatorMaciel, A. C.
dc.creatorRyan, J. F.
dc.creatorMacherey, F.
dc.creatorSchaepers, Th.
dc.creatorLueth, H.
dc.date2006-04-03
dc.date.accessioned2026-07-07T07:05:12Z
dc.date.available2026-07-07T07:05:12Z
dc.descriptionModulation-doped GaAs v-groove quantum wires (QWRs) have been fabricated with novel electrical contacts made to two-dimensional electron-gas (2DEG) reservoirs. Here, we present longitudinal photocurrent (photoconductivity/PC) spectroscopy measurements of a single QWR. We clearly observe conductance in the ground-state one-dimensional subbands; in addition, a highly temperature-dependent response is seen from other structures within the v-groove. The latter phenomenon is attributed to the effects of structural topography and localization on carrier relaxation. The results of power-dependent PC measurements suggest that the QWR behaves as a series of weakly interacting localized states, at low temperatures.
dc.identifierhttps://arxiv.org/abs/cond-mat/0604032
dc.identifierhttp://arxiv.org/abs/cond-mat/0604032
dc.identifierNanotechnology 16, 307 (2005)
dc.identifierdoi:10.1088/0957-4484/16/2/023
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/109589
dc.subjectMesoscale and Nanoscale Physics
dc.titleLongitudinal photocurrent spectroscopy of a single GaAs/AlGaAs v-groove quantum wire
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