314 research outputs found
We have heritage, therefore we are:introduction to the teaching of heritage in a diverse Europe
We have heritage, therefore we are:introduction to the teaching of heritage in a diverse Europe
We have heritage, therefore we are:introduction to the teaching of heritage in a diverse Europe
We have heritage, therefore we are:introduction to the teaching of heritage in a diverse Europe
Hall-conductivity sign change and fluctuations in amorphous NbGe films
The sign change in the Hall conductivity has been studied in thin amorphous
NbGe0.3) films. By changing the film thickness it is
shown that the field at which the sign reversal occurs shifts to lower values
(from above to below the mean-field transition field ) with increasing
film thickness. This effect can be understood in terms of a competition between
a positive normal and a negative fluctuation contribution to the Hall
conductivity.Comment: 5 pages, 4 figures, to appear in Phys. Rev.
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