학술논문

Scaling law describes the spin-glass response in theory, experiments and simulations
Document Type
Working Paper
Source
Phys. Rev. Lett. 125, 237202 (2020)
Subject
Condensed Matter - Statistical Mechanics
Condensed Matter - Disordered Systems and Neural Networks
Language
Abstract
The correlation length $\xi$, a key quantity in glassy dynamics, can now be precisely measured for spin glasses both in experiments and in simulations. However, known analysis methods lead to discrepancies either for large external fields or close to the glass temperature. We solve this problem by introducing a scaling law that takes into account both the magnetic field and the time-dependent spin-glass correlation length. The scaling law is successfully tested against experimental measurements in a CuMn single crystal and against large-scale simulations on the Janus II dedicated computer.
Comment: Revised version, including supplemental material