Paulose, P. L. ; Nagarajan, V. ; Grover, A. K. ; Dhar, S. K. ; Sampathkumaran, E. V. (1987) High-temperature superconductivity in the multiphase compound system Y-Ba-Cu-O Journal of Physics F - Metal Physics, 17 (5). L91-L96. ISSN 0305-4608
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Official URL: http://iopscience.iop.org/0305-4608/17/5/004
Related URL: http://dx.doi.org/10.1088/0305-4608/17/5/004
Abstract
The measurement of AC and DC magnetic susceptibilities, DC electrical resistance and magnetic hysteresis confirms the existence of a superconducting phase transition well above 77 K in the compound system Y1.2Ba0.8CuO4. The method of preparation followed yields a zero-resistance temperature of 87 K and a deviation from high-temperature linear electrical resistance behaviour at 140 K in the system Y-Ba-Cu-O. These values are, to the authors' knowledge, the highest ever reported in any stable superconducting compound. The width of the transition is also very narrow ( approximately 2K) in the specimens. The sensitivity of these materials to different heat treatments is described.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Physics. |
| ID Code: | 47298 |
| Deposited On: | 08 Jul 2011 12:57 |
| Last Modified: | 10 Jul 2012 08:02 |
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