Browse:

The university is member of the Confederation of Open Access Repositories (COAR)

More information about Open Acces at open-acces.net

Integrating suspended quantum dot circuits for applications in nanomechanics

Kirschbaum, J. and Höhberger, E. M. and Blick, Robert H. and Wegscheider, Werner and Bichler, Max (2002) Integrating suspended quantum dot circuits for applications in nanomechanics. Applied Physics Letters 81 (2), pp. 280-282.

PDF - Repository staff only - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
279Kb

Abstract

We present an integrated nanoelectromechanical circuit designed for achieving ultrasensitive displacement detection. It consists of a suspended quantum dot defined in the two-dimensional electron system of an AlGaAs/GaAs heterostructure and a mechanical resonator located in close vicinity. Operation of the individual components is demonstrated: Mechanical as well as transport properties of the resonator and the electron system are specified, respectively. Coulomb blockade in a freely suspended quantum dot is revealed. The data are used to estimate the maximum displacement sensitivity of the device to be 0.029 Å/sqrt(Hz).

Item Type:

Article

Institutions:

Physics > Institute of Experimental and Applied Physics > Retired Professors > Group Werner Wegscheider

Identification Number:

Value	Type
10.1063/1.1492302	DOI

Related URLs:

URL	URL Type
http://link.aip.org/link/?APPLAB/81/280/1	Publisher

Classification:

Notation	Type
85.85.+j; 07.07.Df; 07.10.Cm; 73.23.Hk; 06.30.Bp;	PACS

Keywords:

aluminium compounds, gallium arsenide, III-V semiconductors, semiconductor quantum dots, Coulomb blockade, displacement measurement, micromechanical resonators, microsensors

Subjects:

500 Science > 530 Physics

Status:

Published

Refereed:

Unknown

Created at the University of Regensburg:

Unknown

Owner:

Martin Kaiser

Deposited On:

07 Dec 2009 14:28