Vortex imaging in superconducting films by scanning hall probe microscopy |
| |
| Authors: | A. Oral S. J. Bending R. G. Humphreys M. Henini |
| |
| Affiliation: | (1) School of Physics, University of Bath, BA2 7AY Bath, UK;(2) DRA Electronics Division, WR14 3PS Malvern, Worcestershire, UK;(3) Department of Physics, University of Nottingham, NG7 2RD Nottingham, UK |
| |
| Abstract: | We have used a low noise Scanning Hall Probe Microscope (SHPM) to study vortex structures in superconducting films. The microscope has high magnetic field ( 2.9×10–8T/ Hz at 77K) and spatial resolution, 0.85 m. Magnetic field profiles of single vortices in High Tc YBa2Cu3O7– thin films have been successfully measured and the microscopic penetration depth of the superconductor has been extracted as a function of temperature. Flux penetration into the superconductor has been imaged in real time (8s/frame). |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
