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.
Editor(s)
Advisor
Supervisor
Co-Advisor
Co-Supervisor
Instructor
Source Title
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Print ISSN
0021-4922
Electronic ISSN
Publisher
IOP Institute of Physics Publishing
Volume
45
Issue
3B
Pages
2246 - 2250
Language
English
Type
Journal Title
Journal ISSN
Volume Title
Series
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.