publication . Article . 2010

Direct visualization of the Campbell regime in superconducting stripes

Name: Direct visualization of the Campbell regime in superconducting stripes
Keywords: Electronic, Optical and Magnetic Materials, Condensed Matter Physics, : Physics [Physical, chemical, mathematical & earth Sciences], : Physique [Physique, chimie, mathématiques & sciences de la terre]

Victor Moshchalkov; Alejandro Silhanek; G. W. Ataklti; R. B. G. Kramer;

Open Access

Published: 19 Apr 2010 Journal: Physical Review B, volume 81 (issn: 1098-0121, eissn: 1550-235X,

Publisher: American Physical Society (APS)

Country: Belgium

Summary

Abstract

A combination of scanning Hall microscopy and scanning ac-susceptibility measurements in superconducting stripes (ribbons) of width w < 10 mu m was used to observe the dimensional phase transitions of the vortex lattice and its stability under alternating fields. At low dc magnetic fields applied perpendicularly to the plane of the stripes, vortices form a one-dimensional chain at the center of the stripes. Above a certain field H*(w), the vortex chain splits in two parallel rows displaced laterally in such a way that a zigzag vortex pattern is observed. By shaking the vortices with an external magnetic ac field and detecting their in-phase motion locally, we ca...

doi: 10.1103/physrevb.81.144508

Subjects

arXiv: Condensed Matter::Superconductivity

free text keywords: Electronic, Optical and Magnetic Materials, Condensed Matter Physics, : Physics [Physical, chemical, mathematical & earth Sciences], : Physique [Physique, chimie, mathématiques & sciences de la terre], Pinning force, Vortex, Magnetic flux, Physics, Magnetic field, Superconductivity, Quantization (physics), Dissipation, Fluxon

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