High-Pressure Electrical Resistivity Measurements of EuFe2As2 Single Crystals
Abstract
High-pressure electrical resistivity measurements up to 3.0 GPa 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 194 K 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 ~2.7 GPa, where T0 → 0, for the samples with RRR= 15 is slightly but distinctly larger than ~2.5 GPa for the samples with RRR = 7.
- Publication:
-
Journal of Physics Conference Series
- Pub Date:
- January 2011
- DOI:
- 10.1088/1742-6596/273/1/012098
- arXiv:
- arXiv:1008.0684
- Bibcode:
- 2011JPhCS.273a2098K
- Keywords:
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- Condensed Matter - Superconductivity
- E-Print:
- To be published in J. Phys.: Conf. Ser