NATURE OF THE IRREVERSIBILITY LINE IN HIGH-TEMPERATURE SUPERCONDUCTORS

M I J  PROBERT; A I M  RAE

NATURE OF THE IRREVERSIBILITY LINE IN HIGH-TEMPERATURE SUPERCONDUCTORS

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

We have performed molecular dynamic simulations of an ensemble of rigid flux lines interacting according to the London model for different pinning strengths. We have studied the equilibrium state and calculated E(J) curves over a range of temperatures and fields. Analysis of the resulting data shows that the unpinned lattice undergoes a genuine melting transition at the irreversibility line, while weak pins turn the low-temperature phase into a glass. In the case of strong pins, collective effects cease to be important and the irreversibility line simply marks the onset of observable thermally active depinning.

Original language	English
Pages (from-to)	1835-1838
Number of pages	4
Journal	Physical Review Letters
Volume	75
Issue number	9
Publication status	Published - 28 Aug 1995

Keywords

LATTICE-MELTING TRANSITION
II SUPERCONDUCTORS
2 DIMENSIONS
2-DIMENSIONAL SUPERCONDUCTORS
STATISTICAL DESCRIPTION
COMPUTER-SIMULATIONS
PHASE-TRANSITIONS
CONDENSED MATTER
LOCAL-STRUCTURE
FLUX

Cite this

@article{8d80937508744fab95f8a64b77527114,

title = "NATURE OF THE IRREVERSIBILITY LINE IN HIGH-TEMPERATURE SUPERCONDUCTORS",

abstract = "We have performed molecular dynamic simulations of an ensemble of rigid flux lines interacting according to the London model for different pinning strengths. We have studied the equilibrium state and calculated E(J) curves over a range of temperatures and fields. Analysis of the resulting data shows that the unpinned lattice undergoes a genuine melting transition at the irreversibility line, while weak pins turn the low-temperature phase into a glass. In the case of strong pins, collective effects cease to be important and the irreversibility line simply marks the onset of observable thermally active depinning.",

keywords = "LATTICE-MELTING TRANSITION, II SUPERCONDUCTORS, 2 DIMENSIONS, 2-DIMENSIONAL SUPERCONDUCTORS, STATISTICAL DESCRIPTION, COMPUTER-SIMULATIONS, PHASE-TRANSITIONS, CONDENSED MATTER, LOCAL-STRUCTURE, FLUX",

author = "PROBERT, {M I J} and RAE, {A I M}",

year = "1995",

month = aug,

day = "28",

language = "English",

volume = "75",

pages = "1835--1838",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "9",

}

TY - JOUR

T1 - NATURE OF THE IRREVERSIBILITY LINE IN HIGH-TEMPERATURE SUPERCONDUCTORS

AU - PROBERT, M I J

AU - RAE, A I M

PY - 1995/8/28

Y1 - 1995/8/28

N2 - We have performed molecular dynamic simulations of an ensemble of rigid flux lines interacting according to the London model for different pinning strengths. We have studied the equilibrium state and calculated E(J) curves over a range of temperatures and fields. Analysis of the resulting data shows that the unpinned lattice undergoes a genuine melting transition at the irreversibility line, while weak pins turn the low-temperature phase into a glass. In the case of strong pins, collective effects cease to be important and the irreversibility line simply marks the onset of observable thermally active depinning.

AB - We have performed molecular dynamic simulations of an ensemble of rigid flux lines interacting according to the London model for different pinning strengths. We have studied the equilibrium state and calculated E(J) curves over a range of temperatures and fields. Analysis of the resulting data shows that the unpinned lattice undergoes a genuine melting transition at the irreversibility line, while weak pins turn the low-temperature phase into a glass. In the case of strong pins, collective effects cease to be important and the irreversibility line simply marks the onset of observable thermally active depinning.

KW - LATTICE-MELTING TRANSITION

KW - II SUPERCONDUCTORS

KW - 2 DIMENSIONS

KW - 2-DIMENSIONAL SUPERCONDUCTORS

KW - STATISTICAL DESCRIPTION

KW - COMPUTER-SIMULATIONS

KW - PHASE-TRANSITIONS

KW - CONDENSED MATTER

KW - LOCAL-STRUCTURE

KW - FLUX

M3 - Article

SN - 0031-9007

VL - 75

SP - 1835

EP - 1838

JO - Physical Review Letters

JF - Physical Review Letters

IS - 9

ER -