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arXiv · 0806.0337

Single crystal of superconducting SmFeAsO1-xFy grown at high pressure

N. D. Zhigadlo·S. Katrych·Z. Bukowski·S. Weyeneth·R. Puzniak·J. Karpinski
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Abstract

Single crystals of SmFeAsO1-xFy of a size up to 120 micrometers have been grown from NaCl/KCl flux at a pressure of 30 kbar and temperature of 1350-1450 C using the cubic anvil high-pressure technique. The superconducting transition temperature of the obtained single crystals varies between 45 and 53 K.Obtained crystals are characterized by a full diamagnetic response in low magnetic fields and by a high critical current density in high magnetic fields. Structural refinement has been performed on single crystal. Differential thermal analysis investigations at 1 bar Ar pressure show decomposition of SmFeAsO1-xFy at 1302 C.

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N. D. Zhigadlo, S. Katrych, Z. Bukowski, S. Weyeneth, R. Puzniak, J. Karpinski. 2008-09-02. Single crystal of superconducting SmFeAsO1-xFy grown at high pressure. https://doi.org/10.1088/0953-8984%2F20%2F34%2F342202

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