Pressure enhancement of superconductivity in an iron-based layered compound LaFeAsO1-xFx

H. Takahashi, K. Igawa, Y. Takahashi, K. Arii, H. Okada, Y. Kamihara, M. Hirano, H. Hosono, K. Matsubayashi, Y. Uwatoko, S. Nakano, T. Kikegawa

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3 Citations (Scopus)

Abstract

Electrical resistivity measurements under high pressure were performed on iron-based superconductor LaFeAsO1-xFx. A steep increase in superconducting transition temperature (Tc) was observed for "optimum-doped" LaFeAsO0.89F0.11, whereas "under-doped" LaFeAsO0.95F0.05 shows a moderate increase in Tc with applying pressure. X-ray diffraction measurements were also performed under high pressure up to 10 GPa. A ratio c/a was observed to decrease with applying pressure, which is similar to the pressure effect on cuprate high-Tc superconductors.

Original languageEnglish
Article number052257
JournalJournal of Physics: Conference Series
Volume150
Issue number5
DOIs
Publication statusPublished - 2009

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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