Nonergodic effects in the Coulomb glass: Specific heat
- 15 September 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 62 (12) , 8030-8037
- https://doi.org/10.1103/physrevb.62.8030
Abstract
We present a numerical method for the investigation of nonergodic effects in the Coulomb glass. An algorithm is developed to obtain an almost complete set of low-energy many-particle states. The dynamics of the sample is mapped to the graph formed by the relevant transitions between these states, that is, by transitions with rates larger than the inverse of the duration of the measurement. The formation of isolated clusters in the graph indicates nonergodicity. We analyze the connectivity of this graph in dependence on temperature, duration of measurement, degree of disorder, and dimensionality, studying how nonergodicity is reflected in the specific heat.Keywords
All Related Versions
This publication has 25 references indexed in Scilit:
- Time-Dependent Development of the Coulomb GapPhysical Review Letters, 1999
- Numerical study of relaxation in electron glassesPhysical Review B, 1999
- Relaxation in Coulomb Glasses at Finite TemperaturePhysica Status Solidi (b), 1998
- Monte Carlo simulations of the dynamical behavior of the Coulomb glassPhysical Review B, 1997
- Numerical study of relaxation effects in the Coulomb glassJournal of Non-Crystalline Solids, 1994
- Relaxation effects in disordered many-electron systems with Coulomb interactionModelling and Simulation in Materials Science and Engineering, 1994
- Relaxation in many-electron systems with disorder and Coulomb interactionJournal of Luminescence, 1994
- Electronic Properties of Doped SemiconductorsPublished by Springer Nature ,1984
- Coulomb gap in disordered systems: computer simulationJournal of Physics C: Solid State Physics, 1979
- Equation of State Calculations by Fast Computing MachinesThe Journal of Chemical Physics, 1953