Magnetoconductance noise and irreversibilities in submicron wires of spin-glass n-CdMnTe

Details Magnetoconductance noise and irreversibilities in submicron wires of spin-glass n-CdMnTe Magnetoconductance noise and irreversibilities in submicron wires of spin-glass n-CdMnTe

1998-04-29

arxiv.org/abs/cond-mat/9804313v1

Phys. Rev. Lett. 80 (1998) 5635

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages revtex, 3 gif figures, Phys. Rev. Lett. 98 (likely)

Scientific paper

10.1103/PhysRevLett.80.5635

Signatures of spin-glass freezing such as the appearance of 1/f conductance
noise, the recovery of universal conductance fluctuations, aging, as well as
magnetic and thermal irreversibilities are detected in mesoscopic wires of
CdMnTe:I at millikelvin temperatures. Spectral characteristics of conductance
time series are consistent with the droplet model of short-range spin-glasses.

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