Neuttiens, G. and Strunk, Christoph and Van Haesendonck, C. and Bruynseraede, Y.
Universal conductance fluctuations and low-temperature 1/f noise in mesoscopic AuFe spin glasses.
Physical Review B (PRB) 62 (6), pp. 3905-3909.
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Other URL: http://link.aps.org/abstract/PRB/v62/p3905
We report on intrinsic time-dependent conductance fluctuations observed in mesoscopic AuFe spin-glass wires. These dynamical fluctuations have a 1/f-like spectrum and appear below the measured spin-glass freezing temperature of our samples. The dependence of the fluctuation amplitude on temperature, magnetic field, voltage, and Fe concentration allows a consistent interpretation in terms of ...
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