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Magnetism and superconductivity in Sb-doped binary and ternary iron chalcogenide single crystals

Cherian, Dona and Nagendra, GM and Elizabeth, Suja (2014) Magnetism and superconductivity in Sb-doped binary and ternary iron chalcogenide single crystals. In: JOURNAL OF CRYSTAL GROWTH, 401 . pp. 338-342.

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Official URL: http://dx.doi.org/ 10.1016/j.jcrysgro.2013.11.008


We report the single crystal growth of antimony doped Fe1+yTe and Fe1+yTe0.5Se0.5 (Fe1+ySbxTe1-x (x=0, 2%, 5%) and Fe1+yTe0.49Se0.49Sb0.02) by a modified horizontal Bridgman method. Growth parameters are optimized to obtain high quality single crystals. The antiferromagnetic (AFM) transition at T-N = 62.2 K which is a first order transition, shifts to lower temperature on doping in Fe1+yTe. Alternately when the chalcogen site of the ternary compound Fe1+yTe0.5Se0.5 is doped with Sb, superconductivity is preserved albeit the superconducting transition temperature (T-C) falls slightly and a concomitant reduction occurs in superconducting volume fraction. (C) 2013 Elsevier B.V. All rights reserved,

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Keywords: Bridgman method; Chalcogenides; Magnetic materials; Superconducting materials
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 03 Sep 2014 10:51
Last Modified: 03 Sep 2014 10:51
URI: http://eprints.iisc.ac.in/id/eprint/49745

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