Electron-phonon interaction in freely suspended quantum dots


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HÖHBERGER, 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. 18(1-3), pp. 99-100. ISSN 1386-9477

@article{Hohberger2003Elect-26008, title={Electron-phonon interaction in freely suspended quantum dots}, year={2003}, doi={10.1016/S1386-9477(02)01029-9}, number={1-3}, volume={18}, issn={1386-9477}, journal={Physica E: Low-dimensional Systems and Nanostructures}, pages={99--100}, author={Höhberger, Eva M. and Kirschbaum, Jochen and Blick, Robert H. and Kotthaus, Jörg P. and Wegscheider, Werner} }

deposit-license Blick, Robert H. Höhberger, Eva M. 2003 2014-01-23T09:52:58Z eng Höhberger, Eva M. Kirschbaum, Jochen Wegscheider, Werner Physica : E, Low-dimensional systems & nanostructures ; 18 (2003), 1-3. - S. 99-100 Kotthaus, Jörg P. Wegscheider, Werner 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. 2014-01-23T09:52:58Z Kirschbaum, Jochen Kotthaus, Jörg P. Blick, Robert H. Electron-phonon interaction in freely suspended quantum dots

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