Authors: Roland Schäfer Peter vom Stein Christoph Wallisser
Publish Date: 2007/02/16
Volume: 147, Issue: 3-4, Pages: 485-503
Abstract
The electrical conductance of mesoscopic wires fluctuates as a function of control parameters such as the magnetic field or the applied bias voltage We present new experimental results in the nonlinear response regime at finite bias voltage While earlier studies focused on the size of the fluctuation in the differential conductance the present work takes a closer look at the critical field Bc defined as the half width of the autocorrelation function as well The experimental findings cannot be explained by existing theoretical descriptions
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