Superconductivity in SmFeAsO0.8F 0.2 Synthesized by High Pressure High Temperature Treatment

Zheng He Hua; Heng Zhang; Ju Peng

doi:10.4028/www.scientific.net/AMR.197-198.499

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 197-198Superconductivity in SmFeAsO0.8F 0.2 Synthesized...

Superconductivity in SmFeAsO_0.8F _0.2 Synthesized by High Pressure High Temperature Treatment

Abstract:

Superconducting SmFeAsO_0.8F_0.2 compound was successfully synthesized by high pressure high temperature treatment with pressure of 6 G Pa at 1400 °C for 2 hours. The X-ray diffraction pattern of the sample indicates the formation of the tetragonal ZrCuSiAs-type SmFeAsO_0.8F_0.2 with lattice parameters a=3.932 Å and c=8.490 Å. The electrical transport study shows that the sample has a rather high transition temperature Tc of about 52 K, and magnetic field effect on the resistance reveals a rather high upper critical field HC2 of about 65 T.

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Advanced Materials Research (Volumes 197-198)

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499-502

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https://doi.org/10.4028/www.scientific.net/AMR.197-198.499

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February 2011

Authors:

Zheng He Hua, Heng Zhang, Ju Peng

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High Pressure High Temperature Treatment, Superconductivity, Transition Temperature, Upper Critical Field

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