Driven vortices in type-II superconductors: A muon spin rotation study

D  Charalambous; E M  Forgan; S  Ramos; S P  Brown; R J  Lycett; D H  Ucko; A J  Drew; S L  Lee; D  Fort; A  Amato; U  Zimmerman

doi:10.1103/PhysRevB.73.104514

Driven vortices in type-II superconductors: A muon spin rotation study

D Charalambous, E M Forgan, S Ramos, S P Brown, R J Lycett, D H Ucko, A J Drew, S L Lee, D Fort, A Amato, U Zimmerman

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

Abstract

We present a detailed study of vortex motion in a type-II superconductor using the muon spin rotation (mu SR) technique. The vortices were set in motion by an alternating transport current. By adjusting the frequency and amplitude of the driving force so that vortices "visible" to the implanted muons did not cross the sample boundaries, a mu SR line shape was obtained corresponding to almost perfectly ordered vortex motion. We also observed sidebands to the mu SR line shape which correspond to the frequency at which vortices pass the implanted muon, and allow a direct measurement of the vortex velocity. Both these features of the line shape confirm numerical predictions reported in a previous study [see Charalambous , Phys. Rev. B 66, 054506 (2002)].

Original language	English
Number of pages	9
Journal	Physical Review. B, Condensed matter and materials physics
Volume	73
DOIs	https://doi.org/10.1103/PhysRevB.73.104514
Publication status	Published - Mar 2006

Keywords

VORTEX LATTICES
PHASE-DIAGRAM
MIXED-STATE
SR
TRANSPORT
DENSITY
MOTION

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10.1103/PhysRevB.73.104514

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title = "Driven vortices in type-II superconductors: A muon spin rotation study",

abstract = "We present a detailed study of vortex motion in a type-II superconductor using the muon spin rotation (mu SR) technique. The vortices were set in motion by an alternating transport current. By adjusting the frequency and amplitude of the driving force so that vortices {"}visible{"} to the implanted muons did not cross the sample boundaries, a mu SR line shape was obtained corresponding to almost perfectly ordered vortex motion. We also observed sidebands to the mu SR line shape which correspond to the frequency at which vortices pass the implanted muon, and allow a direct measurement of the vortex velocity. Both these features of the line shape confirm numerical predictions reported in a previous study [see Charalambous , Phys. Rev. B 66, 054506 (2002)].",

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AU - Charalambous, D

AU - Forgan, E M

AU - Ramos, S

AU - Brown, S P

AU - Lycett, R J

AU - Ucko, D H

AU - Drew, A J

AU - Lee, S L

AU - Fort, D

AU - Amato, A

AU - Zimmerman, U

PY - 2006/3

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N2 - We present a detailed study of vortex motion in a type-II superconductor using the muon spin rotation (mu SR) technique. The vortices were set in motion by an alternating transport current. By adjusting the frequency and amplitude of the driving force so that vortices "visible" to the implanted muons did not cross the sample boundaries, a mu SR line shape was obtained corresponding to almost perfectly ordered vortex motion. We also observed sidebands to the mu SR line shape which correspond to the frequency at which vortices pass the implanted muon, and allow a direct measurement of the vortex velocity. Both these features of the line shape confirm numerical predictions reported in a previous study [see Charalambous , Phys. Rev. B 66, 054506 (2002)].

AB - We present a detailed study of vortex motion in a type-II superconductor using the muon spin rotation (mu SR) technique. The vortices were set in motion by an alternating transport current. By adjusting the frequency and amplitude of the driving force so that vortices "visible" to the implanted muons did not cross the sample boundaries, a mu SR line shape was obtained corresponding to almost perfectly ordered vortex motion. We also observed sidebands to the mu SR line shape which correspond to the frequency at which vortices pass the implanted muon, and allow a direct measurement of the vortex velocity. Both these features of the line shape confirm numerical predictions reported in a previous study [see Charalambous , Phys. Rev. B 66, 054506 (2002)].

KW - VORTEX LATTICES

KW - PHASE-DIAGRAM

KW - MIXED-STATE

KW - SR

KW - TRANSPORT

KW - DENSITY

KW - MOTION

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DO - 10.1103/PhysRevB.73.104514

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JO - Physical Review. B, Condensed matter and materials physics

JF - Physical Review. B, Condensed matter and materials physics

ER -

Driven vortices in type-II superconductors: A muon spin rotation study

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Keywords

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