Anooja, Jayakumari B. and Aswathy, Pillai M. and Varghese, Neson and Aloysius, Rajappan P. and Syamaprasad, Upendran (2014) SmFeAsO Superconductor with Preferred Crystallographic Orientation and Enhanced Critical Current Density. Journal of the American Ceramic Society, 97 (7). pp. 2099-2104. ISSN 0002-7820

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The effect of combined substitution of Sm3+ and O2- with Ca2+ and F-, respectively, on the structural and superconducting properties of SmFeAsO system is investigated. It is observed that the binary doping using CaF2 causes considerable structural as well as microstructural changes wherein the preferred orientation of (00 l) planes and enhancement of grain size are quite interesting. Moreover, a maximum T-C of 53.8 K and a transport J(C) of 880 A/cm(2) (12 K) are achieved in the codoped samples. The achievement of preferred orientation, enhanced T-C, and the subsequent increase in J(C) of the modified SmFeAsO system are particularly significant for high current conductor development.

Item Type: Article
Additional Information: Copyright for this article belongs to M/S Wiley.
Subjects: Materials Science
Depositing User: Dr. Rajpal Walke
Date Deposited: 05 Nov 2015 10:12
Last Modified: 05 Nov 2015 10:12

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