Volume 33, Number 6, February III 1996
|Page(s)||489 - 494|
|Section||Condensed matter: electronic structure, electrical, magnetic and optical properties|
|Published online||01 September 2002|
High-frequency dynamics and the spin-glass transition
The James Franck Institute and Department of Physics
The University of
Chicago, Chicago, IL 60637, USA
2 AT&T Bell Laboratories, Murray Hill, NJ 07974, USA
Accepted: 11 January 1996
We identify two distinct regimes in the high-frequency response of the insulating, Ising spin-glass, . The asymptotic high-frequency behavior of the imaginary part of the magnetic susceptibility becomes frequency independent as the spin-glass transition is approached: the shortest and the longest measured time scales both contain information about the actual phase transition. We compare our results to corresponding data on supercooled liquids.
PACS: 75.50.Lk – Spin glasses and other random magnets / 75.40.Gb – Dynamic properties (dynamic susceptibility, spin waves, spin diffusion, dynamic scaling, etc.) / 64.70.Pf – Glass transitions
© EDP Sciences, 1996
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