Charge avalanches and depinning in the Coulomb glass: The role of long-range interactions

J. C. Andresen, Y. Pramudya, Helmut G. Katzgraber, C. K. Thomas, G. T. Zimanyi, V. Dobrosavljević

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We explore the stability of far-from-equilibrium metastable states of a three-dimensional Coulomb glass at zero temperature by studying charge avalanches triggered by a slowly varying external electric field. Surprisingly, we identify a sharply defined dynamical (“depinning”) phase transition from stationary to nonstationary charge displacement at a critical value of the external electric field. Using particle-conserving dynamics, scale-free system-spanning avalanches are observed only at the critical field. We show that the qualitative features of this depinning transition are completely different for an equivalent short-range model, highlighting the key importance of long-range interactions for nonequilibrium dynamics of Coulomb glasses.
Original languageEnglish
Article number094429
JournalPhysical Review B
Volume93
DOIs
Publication statusPublished - 24 Mar 2016
Externally publishedYes

Fingerprint

avalanches
Electric fields
Glass
electric fields
glass
metastable state
Phase transitions
interactions
Temperature
temperature

Bibliographical note

The full text is unavailable on the repository.

Cite this

Andresen, J. C., Pramudya, Y., Katzgraber, H. G., Thomas, C. K., Zimanyi, G. T., & Dobrosavljević, V. (2016). Charge avalanches and depinning in the Coulomb glass: The role of long-range interactions. Physical Review B, 93, [094429]. https://doi.org/10.1103/PhysRevB.93.094429

Charge avalanches and depinning in the Coulomb glass: The role of long-range interactions. / Andresen, J. C.; Pramudya, Y.; Katzgraber, Helmut G.; Thomas, C. K.; Zimanyi, G. T.; Dobrosavljević, V.

In: Physical Review B, Vol. 93, 094429, 24.03.2016.

Research output: Contribution to journalArticle

Andresen, JC, Pramudya, Y, Katzgraber, HG, Thomas, CK, Zimanyi, GT & Dobrosavljević, V 2016, 'Charge avalanches and depinning in the Coulomb glass: The role of long-range interactions' Physical Review B, vol. 93, 094429. https://doi.org/10.1103/PhysRevB.93.094429
Andresen JC, Pramudya Y, Katzgraber HG, Thomas CK, Zimanyi GT, Dobrosavljević V. Charge avalanches and depinning in the Coulomb glass: The role of long-range interactions. Physical Review B. 2016 Mar 24;93. 094429. https://doi.org/10.1103/PhysRevB.93.094429
Andresen, J. C. ; Pramudya, Y. ; Katzgraber, Helmut G. ; Thomas, C. K. ; Zimanyi, G. T. ; Dobrosavljević, V. / Charge avalanches and depinning in the Coulomb glass: The role of long-range interactions. In: Physical Review B. 2016 ; Vol. 93.
@article{5fa313b44ac04b19885d89748b6d1691,
title = "Charge avalanches and depinning in the Coulomb glass: The role of long-range interactions",
abstract = "We explore the stability of far-from-equilibrium metastable states of a three-dimensional Coulomb glass at zero temperature by studying charge avalanches triggered by a slowly varying external electric field. Surprisingly, we identify a sharply defined dynamical (“depinning”) phase transition from stationary to nonstationary charge displacement at a critical value of the external electric field. Using particle-conserving dynamics, scale-free system-spanning avalanches are observed only at the critical field. We show that the qualitative features of this depinning transition are completely different for an equivalent short-range model, highlighting the key importance of long-range interactions for nonequilibrium dynamics of Coulomb glasses.",
author = "Andresen, {J. C.} and Y. Pramudya and Katzgraber, {Helmut G.} and Thomas, {C. K.} and Zimanyi, {G. T.} and V. Dobrosavljević",
note = "The full text is unavailable on the repository.",
year = "2016",
month = "3",
day = "24",
doi = "10.1103/PhysRevB.93.094429",
language = "English",
volume = "93",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",

}

TY - JOUR

T1 - Charge avalanches and depinning in the Coulomb glass: The role of long-range interactions

AU - Andresen, J. C.

AU - Pramudya, Y.

AU - Katzgraber, Helmut G.

AU - Thomas, C. K.

AU - Zimanyi, G. T.

AU - Dobrosavljević, V.

N1 - The full text is unavailable on the repository.

PY - 2016/3/24

Y1 - 2016/3/24

N2 - We explore the stability of far-from-equilibrium metastable states of a three-dimensional Coulomb glass at zero temperature by studying charge avalanches triggered by a slowly varying external electric field. Surprisingly, we identify a sharply defined dynamical (“depinning”) phase transition from stationary to nonstationary charge displacement at a critical value of the external electric field. Using particle-conserving dynamics, scale-free system-spanning avalanches are observed only at the critical field. We show that the qualitative features of this depinning transition are completely different for an equivalent short-range model, highlighting the key importance of long-range interactions for nonequilibrium dynamics of Coulomb glasses.

AB - We explore the stability of far-from-equilibrium metastable states of a three-dimensional Coulomb glass at zero temperature by studying charge avalanches triggered by a slowly varying external electric field. Surprisingly, we identify a sharply defined dynamical (“depinning”) phase transition from stationary to nonstationary charge displacement at a critical value of the external electric field. Using particle-conserving dynamics, scale-free system-spanning avalanches are observed only at the critical field. We show that the qualitative features of this depinning transition are completely different for an equivalent short-range model, highlighting the key importance of long-range interactions for nonequilibrium dynamics of Coulomb glasses.

U2 - 10.1103/PhysRevB.93.094429

DO - 10.1103/PhysRevB.93.094429

M3 - Article

VL - 93

JO - Physical Review B

JF - Physical Review B

SN - 2469-9950

M1 - 094429

ER -