Pressure studies of (La, Sm)FeAsO1-xFx and LaFePO

H. Takahashi, H. Okada, K. Igawa, Yoichi Kamihara, M. Hirano, H. Hosono

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Pressure dependence on superconducting transition temperature (Tc) was examined for iron-based superconductor LaFeAsO1-xFx, SmFeAsO1-xFx and LaFePO. The Tc's increase largely for LaFePO and LaFeAsO1-xFx with a small increase of pressure. The electrical resistivity measurements reveal the pressure-induced superconductivity in undoped LaFeAsO and SmFeAsO. X-ray diffraction measurements were also performed under high pressure up to 10 GPa for LaFePO and LaFeAsO1-xFx system, where the anisotropic decrease of the lattice constants was observed with applying pressure.

Original languageEnglish
Pages (from-to)413-417
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume469
Issue number9-12
DOIs
Publication statusPublished - 2009
Externally publishedYes

Fingerprint

pressure dependence
superconductivity
transition temperature
iron
Superconductivity
electrical resistivity
Superconducting transition temperature
Lattice constants
diffraction
x rays
X ray diffraction
Iron-based Superconductors

Keywords

  • High pressure
  • Iron-based superconductor
  • LaFeAsOF
  • LaFePO
  • Oxypnictide
  • SmFeAsOF
  • Superconductivity

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Electronic, Optical and Magnetic Materials

Cite this

Pressure studies of (La, Sm)FeAsO1-xFx and LaFePO. / Takahashi, H.; Okada, H.; Igawa, K.; Kamihara, Yoichi; Hirano, M.; Hosono, H.

In: Physica C: Superconductivity and its Applications, Vol. 469, No. 9-12, 2009, p. 413-417.

Research output: Contribution to journalArticle

Takahashi, H. ; Okada, H. ; Igawa, K. ; Kamihara, Yoichi ; Hirano, M. ; Hosono, H. / Pressure studies of (La, Sm)FeAsO1-xFx and LaFePO. In: Physica C: Superconductivity and its Applications. 2009 ; Vol. 469, No. 9-12. pp. 413-417.
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