Search for pressure induced superconductivity in CeFeAsO and CeFePO iron pnictides

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.

arXiv comment5 pages, 4 figures. Figure 1 is now separated into Fig. 1 and Fig. 2 to separate piston-cylinder and anvil pressure techniques. Updated reference list. Modified Fig. 4

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Cited by in corpus (11)

• The phase diagrams of iron-based superconductors: theory and experiments
• Avoided ferromagnetic quantum critical point: Unusual short-range ordered state in CeFePO
• Effect of external pressure on the magnetic properties of LnFeAsO (Ln = La, Ce, Pr, Sm)
• A view from inside iron-based superconductors
• Superconductivity under pressure in $R$FeAsO${}_{1-\mathrm{x}}$F${}_{\mathrm{x}}$ ($R$=La, Ce$-$Sm) by dc magnetization measurements
• Pr magnetism and its interplay with the Fe spin density wave in PrFeAsO
• Hydrostatic and chemical pressure tuning of CeFeAs_1-xP_xO single crystals
• Avoided ferromagnetic quantum critical point: Antiferromagnetic ground state in substituted CeFePO
• Electron doping of the iron-arsenide superconductor CeFeAsO controlled by hydrostatic pressure
• Suppression of the magnetic order in CeFeAsO: non-equivalence of hydrostatic and chemical pressure
• How chemical pressure affects the fundamental properties of rare-earth pnictides: an ARPES view