Real-time imaging of vortex-antivortex annihilation in Bi 2Sr2CaCu2O8+δ single crystals by low temperature scanning hall probe microscopy

Date

2006

Authors

Dede, M.
Oral, A.
Yamamoto, T.
Kadowaki, K.
Shtrikman, H.

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Abstract

Vortices in superconductors play an important role in operating limits and applications of the superconductors. Scanning Hall probe microscopes have proven themselves to be quantitative and non-invasive tools for investigating magnetic samples down to 50 nm scale. Penetration of vortices in high quality single crystal Bi2Sr2CaCu2O8+δ superconductor has been studied in real-time with single vortex resolution at 77 K using a low temperature scanning Hall probe microscope (LT-SHPM). Vortices have been observed to be annihilated by the antivortices in small M-H loops.

Source Title

Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers

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IOP Institute of Physics Publishing

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Published Version (Please cite this version)

Language

English