Answers are grounded in this paper and cite their sources.
Magnetoresistance measurements on 1000-ppm CuMn mesoscopic spin-glass samples reveal phase-coherent electron propagation on 0.4-{μ}m length scales observed as conductance fluctuations and Aharonov-Bohm resistance oscillations. Exploiting the broken time-reversal symmetry of the spin-glass state, a unique magnetofingerprint of the specific frozen spin configuration is extracted from a pair of resistance measurements. These ``spin-glass fingerprints'' are manifestly different after several thermal histories, but are surprisingly robust upon field cycling to over 9 times the typical exchange field.
No takes yet. Share an insight, caveat, or question.
Vegvar et al. (1991) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: