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arXiv · 1011.1593

Search for pressure induced superconductivity in CeFeAsO and CeFePO iron pnictides

Diego A. Zocco·Ryan E. Baumbach·James J. Hamlin·Marc Janoschek·Ivy K. Lum·Michael A. McGuire·Athena S. Sefat·Brian C. Sales·Rongying Jin·David Mandrus·Jason R. Jeffries·Samuel T. Weir·Yogesh K. Vohra·M. Brian Maple
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Abstract

The CeFeAsO and CeFePO iron pnictide compounds were studied via electrical transport measurements under high-pressure. In CeFeAsO polycrystals, the magnetic phases involving the Fe and Ce ions coexist up to 15 GPa, with no signs of pressure-induced superconductivity up to 50 GPa. For the CeFePO single crystals, pressure stabilizes the Kondo screening of the Ce 4f-electron magnetic moments.

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Diego A. Zocco, Ryan E. Baumbach, James J. Hamlin, Marc Janoschek, Ivy K. Lum, Michael A. McGuire, Athena S. Sefat, Brian C. Sales, Rongying Jin, David Mandrus, Jason R. Jeffries, Samuel T. Weir, Yogesh K. Vohra, M. Brian Maple. 2011-03-26. Search for pressure induced superconductivity in CeFeAsO and CeFePO iron pnictides. https://doi.org/10.1103/physrevb.83.094528

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