In this paper we have shown the doping effects of elements Y, F and Sb in place of RE (rare earth elements), O and As respectively in 1111-ferropnictides. We study the behavior of upper critical field and superconducting transition temperatures as a function of doping. In Ce and La based compounds maximum upper critical field was found to be 147 T and 122 T respectively. Correspondingly, the maximum transition temperature was found to be 48.6 K and 34.8 K. © 2012 American Institute of Physics.

Jai Prakash

Department of Chemistry

S.J. Singh

V.K. Maurya

A.K. Ganguli

S. Patnaik

Indian Institute of Technology Hyderabad (IITH) is a premier institute of science and technology established in 2008. IITH has been consistently ranked in the&nbsp;<a href="https://iith.ac.in/reports/" rel="noopener noreferrer">top 10 institutes</a>&nbsp;in India for Engineering&nbsp;<a href="https://www.nirfindia.org/2021/EngineeringRanking.html" rel="noopener noreferrer" target="_blank">according to NIRF</a>&nbsp;making it one of the most coveted schools for science and technology in the country.

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Journal	AIP Conference Proceedings
ISSN	0094243X