Kumar, Shailendra ; Roy, S. B. ; Pradhan, A. K. ; Chaddah, P. ; Prasad, Ram ; Soni, N. C. (1993) Second harmonic generation as a sensitive technique for estimating Hc1 of high Tc materials Journal of Applied Physics, 73 (3). 1539_1-1539_3. ISSN 0021-8979
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Official URL: http://jap.aip.org/resource/1/japiau/v73/i3/p1539_...
Related URL: http://dx.doi.org/10.1063/1.354049
Abstract
A simple and interesting technique for measuring the Hc1 of the superconducting grains in bulk high Tc superconductor (HTSC) samples is presented herein. This technique takes advantage of interesting history effects observed in the nonlinear magnetic response of HTSC samples. The hysteretic second harmonic magnetization shows sharp structure at low applied fields due to the magnetic flux trapped inside the grains. This feature is used to track the penetration of magnetic field inside the superconducting granular regions.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | High-Tc Superconductors; Critical Field; Measuring Methods; Second Harmonic Generation; Magnetization; Granular Materials; Magnetic Flux |
| ID Code: | 84688 |
| Deposited On: | 27 Feb 2012 04:15 |
| Last Modified: | 27 Feb 2012 04:15 |
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