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arXiv · 2002.07478

On the Slowing Down of Spin Glass Correlation Length Growth:simulations meet experiments

Q. Zhai·V. Martin-Mayor·D. L. Schlagel·G. G. Kenning·R. L. Orbach
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Abstract

The growth of the spin-glass correlation length has been measured as a function of the waiting time $t_{\mathrm{w}}$ on a single crystal of CuMn (6 at.\%), reaching values $ξ\sim 150$ nm, larger than any other glassy correlation-length measured to date. We find an aging rate $\mathrm{d}\ln\,t_{\mathrm{w}}/\mathrm{d}\ln\,ξ$ larger than found in previous measurements, which evinces a dynamic slowing-down as $ξ$ grows. Our measured aging rate is compared with simulation results by the Janus collaboration. After critical effects are taken into account, we find excellent agreement with the Janus data.

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Q. Zhai, V. Martin-Mayor, D. L. Schlagel, G. G. Kenning, R. L. Orbach. 2020-02-18. On the Slowing Down of Spin Glass Correlation Length Growth:simulations meet experiments. https://doi.org/10.1103/physrevb.100.094202

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