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

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.

4 pages; published versioin

References in corpus (2)

• Disorder-Driven Non-Fermi Liquid Behavior of Correlated Electrons
• Symmetrical field effect and slow electron relaxation in granular aluminium

Cited by in corpus (8)

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• Kardar-Parisi-Zhang Physics in the Density Fluctuations of Localized Two-Dimensional Wave Packets
• Conductance noise in an out-of-equilibrium two-dimensional electron system
• Glassy states in fermionic systems with strong disorder and interactions
• Nonequilibrium relaxation and scaling properties of the two-dimensional Coulomb glass in the aging regime
• Screening the Coulomb interaction leads to a prethermal regime in two-dimensional bad conductors