Cade, N. I.
[Author];
Hadjipanayi, M.
[Author];
Roshan, R.
[Author];
Maciel, A. C.
[Author];
Ryan, J. F.
[Author];
Macherey, F.
[Author];
Schäpers, T.
[Author];
Lüth, H.
[Author]
Longitudinal photocurrent spectroscopy of a single GaAs/AlGaAs v-groove quantum wire
You can manage bookmarks using lists, please log in to your user account for this.
Media type:
E-Article
Title:
Longitudinal photocurrent spectroscopy of a single GaAs/AlGaAs v-groove quantum wire
Contributor:
Cade, N. I.
[Author];
Hadjipanayi, M.
[Author];
Roshan, R.
[Author];
Maciel, A. C.
[Author];
Ryan, J. F.
[Author];
Macherey, F.
[Author];
Schäpers, T.
[Author];
Lüth, H.
[Author]
imprint:
IOP Publ., 2005
Published in:Nanotechnology 16, 307 - 311 (2005). doi:10.1088/0957-4484/16/2/023
Language:
English
DOI:
https://doi.org/10.1088/0957-4484/16/2/023
ISSN:
0957-4484
Keywords:
Origination:
Footnote:
Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
Description:
Modulation-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.