Meena, R. S. and Rao, K. V. R. and Kishan, Hari and Awana, V. P. S. (2017) Inter-comparison of electric and magnetic behaviour of superconducting quaternary oxy-pnictide compounds. IOP Conference Series: Materials Science and Engineering, 171 (012153). ISSN 1757-8981
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Abstract
Three different oxy-pnictides 'REFeAsO' compounds are prepared by simple and easy solid state single step method. Structural analysis is carried with the help of the X-ray technique and confirms that the obtained samples are phase pure and crystallized in tetragonal P4/nmm structure. Superconductivity is introduced by partial replacement of oxygen by Fluorine in NdFeAsO0.8F0.2, SmFeAsO0.8F0.2 and PrFeAsO0.8F0.2, with highest T-c(48K) in NdFeAsO0.8F0.2. SmFeAsO0.8F0.2 compound shows the highest upper critical field (H-c2) similar to 377 Tesla, estimated using Ginzburg Landau, (GL). Critical current density doesn't change significantly. The measured MR (magneto resistance) for PrFeAsO is 21.5%, whereas it is 16% for SmFeAsO. Here, we report in brief an inter-comparison of various properties like electric and magnetic transport, magneto-resistance for these synthesized oxy-pnictide compounds.
| Item Type: | Article |
|---|---|
| Additional Information: | Copyright for this article belongs to M/s IOP Publishing. |
| Subjects: | Materials Science Thermodynamics |
| Divisions: | UNSPECIFIED |
| Depositing User: | Users 27 not found. |
| Date Deposited: | 29 Oct 2018 11:34 |
| Last Modified: | 29 Oct 2018 11:34 |
| URI: | http://npl.csircentral.net/id/eprint/2754 |
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