Ghosh, K. ; Ramakrishnan, S. ; Grover, A. K. ; Chandra, Girish ; Rao, T. V. Chandrasekhar ; Mishra, P. K. ; Ravikumar, G. ; Sahni, V. C. (1995) Lower critical field of YNi2B2C and the influence of granularity Physical Review B, 52 (1). pp. 68-70. ISSN 0163-1829
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Official URL: http://prb.aps.org/abstract/PRB/v52/i1/p68_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.52.68
Abstract
We report on the determination of the lower critical field (Hc1) of the newly discovered borocarbide superconductor YNi2B2C (YNBC). Our Hc1(T) data seem to fit to the relation Hc1(0) [1-(T/Tc)2] over a wide temperature range and they give Hc1(0) a value (22 mT) which is consistent with a recent analysis based on Ginzberg-Landau theory. A deviation from the said relationship is observed near Tc(0) and we show that it is a consequence of the intergranularity effect in a polycrystalline superconductor.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 14758 |
| Deposited On: | 12 Nov 2010 13:40 |
| Last Modified: | 02 Jun 2011 06:34 |
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