Search for pressure induced superconductivity in CeFeAsO and CeFePO iron pnictides

Details Search for pressure induced superconductivity in CeFeAsO and CeFePO iron pnictides Search for pressure induced superconductivity in CeFeAsO and CeFePO iron pnictides

2010-11-06

arxiv.org/abs/1011.1593v2

Phys. Rev. B 83, 094528 (2011)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 4 figures. Figure 1 is now separated into Fig. 1 and Fig. 2 to separate piston-cylinder and anvil pressure techniques

Scientific paper

10.1103/PhysRevB.83.094528

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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