Senapati, K. ; Chakrabarty, S. ; Leena Sahoo, K. ; Budhani, R. C. (2004) Miniature Hall sensor based AC susceptometer for measurements of vortex and superfluid dynamics in superconducting films Review of Scientific Instruments, 75 (1). 141_1-141. ISSN 0034-6748
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Official URL: http://rsi.aip.org/resource/1/rsinak/v75/i1/p141_s...
Related URL: http://dx.doi.org/10.1063/1.1630835
Abstract
A highly sensitive ac susceptometer has been fabricated using a commercially available thin film Hall sensor of effective area 25× 25 μ m2. This instrument allows measurements of superfluid density and dynamical behavior of vortices in thin film superconductors over a broad range of frequency (10 Hz-100 kHz), temperature (4.2-300 K), and ac-field amplitude (2-150 Oe), and in static magnetic field as high as 5 T collinear with the ac field. The applicability of the susceptometer has been tested on Y1Ba2Cu3O7 films of thickness as small as -7 nm.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | Hall Effect Transducers; Superconducting Thin Films; Flux Flow; High-temperature Superconductors; Yttrium Compounds; Barium Compounds; Magnetic Susceptibility |
| ID Code: | 77234 |
| Deposited On: | 10 Jan 2012 14:34 |
| Last Modified: | 10 Jan 2012 14:34 |
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