Izvorni znanstveni članak
Amplitude of Aharonov-Bohm oscillations in mesoscopic metallic rings as a function of the DC bias voltage
C. Terrier
; Institute of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland
C. Strunk
; Institute of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland
T. Nussbaumer
; Institute of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland
D. Babić
; Institute of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland; Department of Physics, Faculty of Science, University of Zagreb, Bijenička 32, HR-10001 Zagreb, Croatia
C. Schönenberger
; Institute of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland
Sažetak
We report measurements of the amplitude of the Aharonov-Bohm oscillations in a mesoscopic diffusive gold ring as a function of the DC bias voltage VDC. The amplitude of the h/e oscillations increases with VDC once the Thouless energy Ec and thermal energy are exceeded, and decreases at higher values of VDC. The increase of the amplitude is interpreted in terms of a superposition of the statistically independent contributions of eVDC/Ec energy intervals, whereas its decrease at high VDC could be attributed to enhanced inelastic scattering processes.
Ključne riječi
mesoscopic systems; Aharonov-Bohm oscillations; ensemble averaging
Hrčak ID:
300969
URI
Datum izdavanja:
1.7.1999.
Posjeta: 166 *