Student Thesis Seminar
"Transmission resonances through Aharonov-Bohm interferometers"
Natalia Romero
Dept. of Condensed Matter Physics, Tel Aviv University
The motivation for this work comes from a transport experiment
performed on a four terminal mesoscopic Aharonov-Bohm interferometer [1].
In that experiment the conductance of the device was measured in two
different configurations. In the first one, both the voltage terminals
and the current terminals were placed across the interferometer. In
the second, the voltage terminals were placed on one side of the
interferometer, and the current terminals on the other. It was then
found that the oscillation amplitude was much different between the
two measuring configurations. Here we attempt to model this
experiment, and to calculate the conductance of the Aharonov-Bohm ring
as function of the magnetic flux, and the other parameters
characterizing the Aharonov-Bohm interferometer.
[1] Kobayashi et al., J. Phys. Soc. Jpn. 71, L2904 (2002).
Thesis Adviser: Prof. Ora Entin, x8524
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