Observation of photon-assisted tunneling through a quantum dot

Journal Article · Mon Dec 19 00:00:00 EST 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.73.3443· OSTI ID:6620214

Kouwenhoven, L P; Jauhar, S; Orenstein, J; McEuen, P L ^[1]; Nagamune, Y; Motohisa, J; Sakaki, H ^[2]

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1. Department of Physics, University of California at Berkeley and Materials Science Division, Lawrence Berkeley Laboratory, Mail stop 2-200, Berkeley, California 94720 (United States)
2. Research Center for Advanced Science and Technology, University of Tokyo 4-6-1 Komaba, Meguro-ku, Tokyo 153 (Japan)

We have measured dc transport through a GaAs/AlGaAs quantum dot in the presence of a microwave signal of frequency [ital f]. We find features related to the photon energy [ital hf] whose positions in gate voltage are independent of the microwave power buy vary linearly with frequency. The measurements demonstrate photon-assisted tunneling in the mesoscopic regime. A comparison is made with a model that extends Coulomb blockade theory to include photon-assisted tunneling.

• OSTI ID: 6620214
• Journal Information: Physical Review Letters; (United States), Vol. 73:25; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ELECTRON GAS
TUNNELING
ALUMINIUM ARSENIDES
ELECTRON-PHONON COUPLING
GALLIUM ARSENIDES
HETEROJUNCTIONS
MICROWAVE SPECTRA
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
COUPLING
FLUIDS
GALLIUM COMPOUNDS
GASES
JUNCTIONS
PNICTIDES
SEMICONDUCTOR JUNCTIONS
SPECTRA
360606* - Other Materials- Physical Properties- (1992-)