Ramakrishnan, S. ; Kumar, Ravi ; Paulose, P. L. ; Grover, A. K. ; Chaddah, P. (1991) Comparison of various methods to determine experimentally the irreversibility line in superconductors Physical Review B, 44 (17). pp. 9514-9518. ISSN 0163-1829
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Official URL: http://prb.aps.org/abstract/PRB/v44/i17/p9514_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.44.9514
Abstract
An attempt has been made to determine the irreversibility temperatures [Tr(H)] via the merger of zero-field-cooled and field-cooled magnetizations, via the vanishing of the isothermal hysteresis, and via the appearance of the differential paramagnetic effect in specimens of lead and niobium. The first method appears to define a lower limit on Tr(H) and does not necessarily indicate a true thermodynamic region near Tc(H). The differential paramagnetic effect, however, is a qualitative feature whose presence is sufficient to imply reversibility.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 14760 |
| Deposited On: | 12 Nov 2010 13:40 |
| Last Modified: | 20 May 2011 05:48 |
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