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

Demetris Charalambous, Edward Forgan, Silvia Ramos, Stephen Brown, Richard Lycett, D Ucko, Alan Drew

Research output: Contribution to journalArticle

9 Citations (Scopus)

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 languageEnglish
Pages (from-to)104514
Number of pages1
JournalPhysical Review B
Volume73
Issue number10
DOIs
Publication statusPublished - 1 Mar 2006

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