A nanoscale SQUID operating at high magnetic fields
Data(s) |
11/11/2011
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Resumo |
A washer-free Nb nanoSQUID has been developed for measuring magnetization changes from nanoscale objects. The SQUID loop is etched into a 250 nm wide Au/Nb bilayer track and the diameter of the SQUID hole is ~ 70 nm. In the presence of a magnetic field perpendicular to the plane of the SQUID, vortex penetration into the 250 nm wide track can be observed via the critical current–applied field characteristic and the value at which vortex first penetrates is consistent with the theoretical prediction. Upon removing the applied field, the penetrated vortices escape the track and the critical current at zero field is restored.<br /> |
Identificador | |
Idioma(s) |
eng |
Publicador |
Institute of Physics Publishing |
Relação |
http://dro.deakin.edu.au/eserv/DU:30048122/yang-nanoscalesquid-2011.pdf http://hdl.handle.net/10.1088/0957-4484/22/45/455501 |
Direitos |
2011, IOP Publishing Ltd |
Palavras-Chave | #applied field #bi-layer #high magnetic fields #nano scale #nano-scale objects #theoretical prediction #vortex penetration #zero fields |
Tipo |
Journal Article |