Glassy Dynamics in Disordered Electronic Systems Reveal Striking Thermal Memory Effects

A. Eisenbach, T. Havdala, J. Delahaye, T. Grenet, A. Amir, A. Frydman

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Memory is one of the unique qualities of a glassy system. The relaxation of a glass to equilibrium contains information on the sample's excitation history, an effect often refer to as "aging." We demonstrate that under the right conditions a glass can also possess a different type of memory. We study the conductance relaxation of electron glasses that are fabricated at low temperatures. Remarkably, the dynamics are found to depend not only on the ambient measurement temperature but also on the maximum temperature to which the system was exposed. Hence the system "remembers" its highest temperature. This effect may be qualitatively understood in terms of energy barriers and local minima in configuration space and therefore may be a general property of the glass state.

Original languageEnglish
Article number116601
JournalPhysical Review Letters
Volume117
Issue number11
DOIs
StatePublished - 6 Sep 2016

Bibliographical note

Publisher Copyright:
© 2016 American Physical Society.

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