Boundary conditions, the critical conductance distribution, and one-parameter scaling
نویسندگان
چکیده
منابع مشابه
Anomalous conductance distribution in quasi-one-dimensional gold wires: possible violation of the one-parameter scaling hypothesis.
We report measurements of conductance distribution in a set of quasi-one-dimensional gold wires. The distribution includes the second cumulant or the variance which describes the universal conductance fluctuations, and the third cumulant which denotes the leading deviation. We have observed an asymmetric contribution--or, a nonvanishing third cumulant--contrary to the expectation for quasi-one-...
متن کاملComment on "Anomalous conductance distribution in quasi-one-dimensional gold wires: possible violation of the one-parameter scaling hypothesis".
Mohanty and Webb [1] claim that their data on conductance fluctuations in gold wires contradict the oneparameter scaling.We show that flaws in extracting values of the cumulants hhgnii of the conductance distribution (for n 3; 4) invalidate their conclusions. The true values of hhgnii determined by us from the raw data published in Ref. [1] are orders of magnitude smaller than those claimed and...
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The evidence of a significant role played by electron-interaction effects in disordered metals' ' suggests an even greater role in the insulating phase" where metallic screening is absent. Historically, a number of experiments in the localized regime have been explained on the basis of the noninteracting Anderson model, in which the insulator is viewed as a Fermi glass." The most widely applied...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2001
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.64.155107