Pressure Study of Superconducting Oxypnictide LaFePO

Details Pressure Study of Superconducting Oxypnictide LaFePO Pressure Study of Superconducting Oxypnictide LaFePO

2008-09-08

arxiv.org/abs/0809.1239v1

Physics

Condensed Matter

Superconductivity

11 pages, 4 figures

Scientific paper

10.1143/JPSJ.78.023701

Electrical resistivity and magnetic susceptibility measurements under high pressure were performed on an iron-based superconductor LaFePO. A steep increase in superconducting transition temperature (Tc) of LaFePO with dTc/dP > 4 K/GPa to a maximum of 8.8 K for P = 0.8 GPa was observed. These results are similar to isocrystalline LaFeAsO1-xFx system reported previously. X-ray diffraction measurements were also performed under high pressure up to 10 GPa, where linear compressibility ka and kc are presented.

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