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arXiv · 1008.0684

High-Pressure Electrical Resistivity Measurements of EuFe2As2 Single Crystals

N. Kurita·M. Kimata·K. Kodama·A. Harada·M. Tomita·H. S. Suzuki·T. Matsumoto·K. Murata·S. Uji·T. Terashima
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Abstract

High-pressure electrical resistivity measurements up to 3.0GPa have been performed on EuFe2As2 single crystals with residual resistivity ratios RRR=7 and 15. At ambient pressure, a magnetic / structural transition related to FeAs-layers is observed at T0 =190K and 194K for samples with RRR=7 and 15, respectively. Application of hydrostatic pressure suppresses T0, and then induces similar superconducting behavior in the samples with different RRR values. However, the critical pressure 2.7GPa, where T0=0, for the samples with RRR=15 is slightly but distinctly larger than 2.5GPa for the samples with RRR=7.

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N. Kurita, M. Kimata, K. Kodama, A. Harada, M. Tomita, H. S. Suzuki, T. Matsumoto, K. Murata, S. Uji, T. Terashima. 2010-08-04. High-Pressure Electrical Resistivity Measurements of EuFe2As2 Single Crystals. https://doi.org/10.1088/1742-6596%2F273%2F1%2F012098

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