Synthesis and characterization of indium doped La{sub 3}Co{sub 4}Sn{sub 13} skutterudite superconductor

Journal Article · Fri May 06 00:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4946536· OSTI ID:22606544

Neha, P.; Srivastava, P.; Shruti,; Sudhesh,; Patnaik, S. ^[1]

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1. School of Physical sciences, Jawaharlal Nehru University, New Delhi-110067 (India)

We report the synthesis and characterization of a novel superconductor La{sub 3}Co{sub 4}Sn{sub 12.35}In{sub 0.65} by Indium doping at Tin site in parent compound La{sub 3}Co{sub 4}Sn{sub 13}. We observe enhanced T{sub c} along with improved superconducting properties as onset compared to parent compound. By transport measurements we get superconducting transition with T{sub c}{sup onset} = 4.7 K and T{sub c}{sup zero} = 3.2 K. In magnetization measurements (ZFC-FC) superconducting transition is observed at 5.1 K. Upper critical field (H{sub c2}) and lower critical field (H{sub c1}) calculated by magneto resistance and M-H loop measurement are found to be 1.65 T and 0.0026 T respectively. Hall measurement shows the majority charge carrier as electrons with carrier density of the order of 10{sup 19} cm{sup −3}. TEP measurement also support the Hall data as the Seebeck coefficient is negative over whole temperature range of measurement.

• OSTI ID: 22606544
• Journal Information: AIP Conference Proceedings, Vol. 1728, Issue 1; Conference: ICC 2015: International conference on condensed matter and applied physics, Bikaner (India), 30-31 Oct 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CARRIER DENSITY
CHARGE CARRIERS
COBALT COMPOUNDS
COMPARATIVE EVALUATIONS
CRITICAL FIELD
DOPED MATERIALS
INDIUM ADDITIONS
LANTHANUM COMPOUNDS
MAGNETIZATION
MAGNETORESISTANCE
SUPERCONDUCTORS
SYNTHESIS
TEMPERATURE RANGE 0000-0013 K
TIN COMPOUNDS
TRANSITION TEMPERATURE