Real-time imaging of vortex-antivortex annihilation in Bi 2Sr2CaCu2O8+δ single crystals by low temperature scanning hall probe microscopy
Date
2006Source Title
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Print ISSN
0021-4922
Publisher
IOP Institute of Physics Publishing
Volume
45
Issue
3B
Pages
2246 - 2250
Language
English
Type
ArticleItem Usage Stats
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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.
Keywords
BSCCOHall effect
Scanning hall probe microscopy
Superconductivity
Vortices
Hall effect
Imaging techniques
Real time systems
Superconducting materials
Superconductivity
Vortex flow
Annihilation
Bi2Sr2CaCu2O8+δ
BSCCO
Scanning hall probe microscopy
Single crystals