Distribution of transport current in a type-II superconductor studied by small-angle neutron scattering

A Pautrat; C Goupil; C Simon; Demetris Charalambous; Edward Forgan; G Lazard; P Mathieu; A Brulet

doi:10.1103/PhysRevLett.90.087002

Distribution of transport current in a type-II superconductor studied by small-angle neutron scattering

A Pautrat
, C Goupil
, C Simon
, Demetris Charalambous
, Edward Forgan
, G Lazard
, P Mathieu
, A Brulet

Physics and Astronomy

Research output: Contribution to journal › Article

20 Citations (Scopus)

Abstract

We report small-angle neutron scattering measurements on the vortex lattice in a PbIn polycrystal in the presence of an applied current. Using the rocking curves as a probe of the distribution of current in the sample, we observe that vortex pinning is due to the surface roughness. This leads to a surface current that persists in the flux-flow region. We show the influence of surface treatments on the distribution of this current.

Original language	English
Pages (from-to)	087002(4)
Journal	Physical Review Letters
Volume	90
DOIs	https://doi.org/10.1103/PhysRevLett.90.087002
Publication status	Published - 1 Feb 2003

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10.1103/PhysRevLett.90.087002

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title = "Distribution of transport current in a type-II superconductor studied by small-angle neutron scattering",

abstract = "We report small-angle neutron scattering measurements on the vortex lattice in a PbIn polycrystal in the presence of an applied current. Using the rocking curves as a probe of the distribution of current in the sample, we observe that vortex pinning is due to the surface roughness. This leads to a surface current that persists in the flux-flow region. We show the influence of surface treatments on the distribution of this current.",

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AU - Pautrat, A

AU - Goupil, C

AU - Simon, C

AU - Charalambous, Demetris

AU - Forgan, Edward

AU - Lazard, G

AU - Mathieu, P

AU - Brulet, A

PY - 2003/2/1

Y1 - 2003/2/1

N2 - We report small-angle neutron scattering measurements on the vortex lattice in a PbIn polycrystal in the presence of an applied current. Using the rocking curves as a probe of the distribution of current in the sample, we observe that vortex pinning is due to the surface roughness. This leads to a surface current that persists in the flux-flow region. We show the influence of surface treatments on the distribution of this current.

AB - We report small-angle neutron scattering measurements on the vortex lattice in a PbIn polycrystal in the presence of an applied current. Using the rocking curves as a probe of the distribution of current in the sample, we observe that vortex pinning is due to the surface roughness. This leads to a surface current that persists in the flux-flow region. We show the influence of surface treatments on the distribution of this current.

UR - https://www.scopus.com/pages/publications/0037471171

U2 - 10.1103/PhysRevLett.90.087002

DO - 10.1103/PhysRevLett.90.087002

M3 - Article

SN - 1079-7114

VL - 90

SP - 087002(4)

JO - Physical Review Letters

JF - Physical Review Letters

ER -

Distribution of transport current in a type-II superconductor studied by small-angle neutron scattering

Abstract

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