ac response of the flux-line liquid in the high-Tc superconductors

Lee Wen Chen, M Cristina Marchetti

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We use a hydrodynamics theory to discuss the response of a viscous flux-line liquid to an ac perturbation applied at the surface of the sample. The theory incorporates viscoelastic effects and describes the crossover between liquidlike and solidlike response of the vortex array as the frequency of the perturbation increases. A large viscosity from flux-line interactions and entanglement leads to viscous screening of surface fields. As a result, two frequency-dependent length scales are needed to describe the penetration of an ac field. For large viscosities the imaginary part of the ac permeability can exhibit, in addition to the well-known peak associated with flux diffusion across the sample, a low-frequency peak corresponding to the transition from solidlike to liquidlike behavior.

Original languageEnglish (US)
Pages (from-to)6382-6393
Number of pages12
JournalPhysical Review B
Volume50
Issue number9
DOIs
StatePublished - 1994

Fingerprint

Superconducting materials
Fluxes
Liquids
liquids
Viscosity
viscosity
perturbation
crossovers
permeability
Screening
Vortex flow
screening
penetration
Hydrodynamics
hydrodynamics
vortices
low frequencies
interactions

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

ac response of the flux-line liquid in the high-Tc superconductors. / Chen, Lee Wen; Marchetti, M Cristina.

In: Physical Review B, Vol. 50, No. 9, 1994, p. 6382-6393.

Research output: Contribution to journalArticle

Chen, Lee Wen ; Marchetti, M Cristina. / ac response of the flux-line liquid in the high-Tc superconductors. In: Physical Review B. 1994 ; Vol. 50, No. 9. pp. 6382-6393.
@article{670790d7347a47dea3b46795f54f13dc,
title = "ac response of the flux-line liquid in the high-Tc superconductors",
abstract = "We use a hydrodynamics theory to discuss the response of a viscous flux-line liquid to an ac perturbation applied at the surface of the sample. The theory incorporates viscoelastic effects and describes the crossover between liquidlike and solidlike response of the vortex array as the frequency of the perturbation increases. A large viscosity from flux-line interactions and entanglement leads to viscous screening of surface fields. As a result, two frequency-dependent length scales are needed to describe the penetration of an ac field. For large viscosities the imaginary part of the ac permeability can exhibit, in addition to the well-known peak associated with flux diffusion across the sample, a low-frequency peak corresponding to the transition from solidlike to liquidlike behavior.",
author = "Chen, {Lee Wen} and Marchetti, {M Cristina}",
year = "1994",
doi = "10.1103/PhysRevB.50.6382",
language = "English (US)",
volume = "50",
pages = "6382--6393",
journal = "Physical Review B-Condensed Matter",
issn = "0163-1829",
publisher = "American Institute of Physics Publising LLC",
number = "9",

}

TY - JOUR

T1 - ac response of the flux-line liquid in the high-Tc superconductors

AU - Chen, Lee Wen

AU - Marchetti, M Cristina

PY - 1994

Y1 - 1994

N2 - We use a hydrodynamics theory to discuss the response of a viscous flux-line liquid to an ac perturbation applied at the surface of the sample. The theory incorporates viscoelastic effects and describes the crossover between liquidlike and solidlike response of the vortex array as the frequency of the perturbation increases. A large viscosity from flux-line interactions and entanglement leads to viscous screening of surface fields. As a result, two frequency-dependent length scales are needed to describe the penetration of an ac field. For large viscosities the imaginary part of the ac permeability can exhibit, in addition to the well-known peak associated with flux diffusion across the sample, a low-frequency peak corresponding to the transition from solidlike to liquidlike behavior.

AB - We use a hydrodynamics theory to discuss the response of a viscous flux-line liquid to an ac perturbation applied at the surface of the sample. The theory incorporates viscoelastic effects and describes the crossover between liquidlike and solidlike response of the vortex array as the frequency of the perturbation increases. A large viscosity from flux-line interactions and entanglement leads to viscous screening of surface fields. As a result, two frequency-dependent length scales are needed to describe the penetration of an ac field. For large viscosities the imaginary part of the ac permeability can exhibit, in addition to the well-known peak associated with flux diffusion across the sample, a low-frequency peak corresponding to the transition from solidlike to liquidlike behavior.

UR - http://www.scopus.com/inward/record.url?scp=0039654510&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0039654510&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.50.6382

DO - 10.1103/PhysRevB.50.6382

M3 - Article

AN - SCOPUS:0039654510

VL - 50

SP - 6382

EP - 6393

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 0163-1829

IS - 9

ER -