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- Title
Effect of O- and Mn-Doping on Superconductivity in FeTe<sub>0.5</sub>Se<sub>0.5</sub> Superconductor.
- Authors
Thakur, Gohil S.; Haque, Zeba; Neha, Prakriti; Gupta, Laxmi C.; Patnaik, Satyabrata; Ganguli, Ashok K.
- Abstract
The effect of oxygen substitution at the selenium site and manganese substitution at the iron site in FeTe0.5Se0.5 superconductor was investigated. It was found that upon partial O substitution, Tc marginally decreases as seen in both resistivity and magnetization experiments. Tc decreases even by a small amount of oxygen concentration (as low as 1 %). This observation is in contrast against an earlier work on Fe(Te/Se) samples, wherein Tc as well as superconducting volume fraction were reported to increase in the samples annealed in air. Mn-doping leads to a decrease in Tc in FeTe0.5Se0.5, which one would expect considering pair-breaking due to Mn2+-ions.
- Subjects
SEMICONDUCTOR doping; SUPERCONDUCTIVITY; OXYGEN; SUBSTITUTION (Technology); SELENIUM; MANGANESE
- Publication
Zeitschrift für Anorganische und Allgemeine Chemie, 2014, Vol 640, Issue 6, p1159
- ISSN
0044-2313
- Publication type
Article
- DOI
10.1002/zaac.201300657