Nonequilibrium Relaxations and Aging Effects in a Two-Dimensional Coulomb Glass

Details Nonequilibrium Relaxations and Aging Effects in a Two-Dimensional Coulomb Glass Nonequilibrium Relaxations and Aging Effects in a Two-Dimensional Coulomb Glass

Publishing date

2006-11-08

URL

arxiv.org/abs/cond-mat/0611232v2

Journals

Phys. Rev. Lett. 99, 046405 (2007)

Science

Physics

Field

Condensed Matter

SubField

Strongly Correlated Electrons

Additional info

4 pages; published versioin

Type

Scientific paper

Digital Object Identifier

10.1103/PhysRevLett.99.046405

Abstract

The relaxations of conductivity have been studied in the glassy regime of a strongly disordered two-dimensional electron system in Si after a temporary change of carrier density during the waiting time t_w. Two types of response have been observed: a) monotonic, where relaxations exhibit aging, i.e. dependence on history, determined by t_w and temperature; b) nonmonotonic, where a memory of the sample history is lost. The conditions that separate the two regimes have been also determined.

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