Publikation:

Electron-phonon interaction in freely suspended quantum dots

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Hoehberger_260088.pdf
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2003

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Kirschbaum, Jochen
Blick, Robert H.
Kotthaus, Jörg P.
Wegscheider, Werner

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http://nbn-resolving.de/urn:nbn:de:bsz:352-260088
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https://doi.org/10.1016/S1386-9477(02)01029-9
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Physica E: Low-dimensional Systems and Nanostructures. 2003, 18(1-3), pp. 99-100. ISSN 1386-9477. Available under: doi: 10.1016/S1386-9477(02)01029-9

Zusammenfassung

We present work on single and double quantum dots which have been defined in the two-dimensional electron gas of a freely suspended GaAs/AlGaAs heterostructure. The dots are formed either by pairs of etched constrictions or by gating electrodes and characterized in Coulomb blockade measurements. Because of their small overall dimensions the suspended dots constitute phonon cavities in which electron transport is strongly modified by electron–phonon interaction. Our measurements indicate that the emission of phonons suppresses linear transport in the Coulomb blockade regime. Upon application of a perpendicular magnetic field Coulomb blockade oscillations reemerge, as well as under nonlinear transport conditions.

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ISO 690WEIG, Eva M., Jochen KIRSCHBAUM, Robert H. BLICK, Jörg P. KOTTHAUS, Werner WEGSCHEIDER, 2003. Electron-phonon interaction in freely suspended quantum dots. In: Physica E: Low-dimensional Systems and Nanostructures. 2003, 18(1-3), pp. 99-100. ISSN 1386-9477. Available under: doi: 10.1016/S1386-9477(02)01029-9
BibTex
@article{Weig2003Elect-26008,
  year={2003},
  doi={10.1016/S1386-9477(02)01029-9},
  title={Electron-phonon interaction in freely suspended quantum dots},
  number={1-3},
  volume={18},
  issn={1386-9477},
  journal={Physica E: Low-dimensional Systems and Nanostructures},
  pages={99--100},
  author={Weig, Eva M. and Kirschbaum, Jochen and Blick, Robert H. and Kotthaus, Jörg P. and Wegscheider, Werner}
}
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