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Local mapping of dissipative vortex motion
Silhanek, Alejandro
201314th International Workshop on Vortex Matter in Superconductors
 

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Keywords :
Superconductivity
Abstract :
[en] We have recently introduced an experimental technique which combines the spatial resolution of scanning Hall microscopy and sensitivity of ac-susceptibility measurements as a tool to probe the vortex dynamics in superconducting materials. This technique has proven to be particularly adequate to prospect the degree of mobility of each individual vortex, map the pinning landscape, visualize the intra-valley to inter-valley vortex hopping, and reveal the different mobility of vortices and antivortices created by magnetic dots. Furthermore, we have shown that using the phase sensitive character of the local ac-susceptibility technique it is possible to investigate the dissipative response of a single vortex. This technique opens new and exciting possibilities to locally study loss mechanisms in a variety of interesting magnetic systems such as magnetic domain walls.
Disciplines :
Physics
Author, co-author :
Silhanek, Alejandro  ;  Université de Liège - ULiège > Département de physique > Physique de la matière condensée
Language :
English
Title :
Local mapping of dissipative vortex motion
Publication date :
May 2013
Event name :
14th International Workshop on Vortex Matter in Superconductors
Event place :
Nanjing, China
Event date :
May 2013
By request :
Yes
Audience :
International
Available on ORBi :
since 11 March 2014

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