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

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

Research output: Contribution to journalArticle

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
Externally publishedYes

Fingerprint

superconductivity
iron
augmentation
pressure effects
cuprates
transition temperature
electrical resistivity
diffraction
x rays

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Pressure enhancement of superconductivity in an iron-based layered compound LaFeAsO1-xFx. / Takahashi, H.; Igawa, K.; Takahashi, Y.; Arii, K.; Okada, H.; Kamihara, Yoichi; Hirano, M.; Hosono, H.; Matsubayashi, K.; Uwatoko, Y.; Nakano, S.; Kikegawa, T.

In: Journal of Physics: Conference Series, Vol. 150, No. 5, 052257, 2009.

Research output: Contribution to journalArticle

Takahashi, H, Igawa, K, Takahashi, Y, Arii, K, Okada, H, Kamihara, Y, Hirano, M, Hosono, H, Matsubayashi, K, Uwatoko, Y, Nakano, S & Kikegawa, T 2009, 'Pressure enhancement of superconductivity in an iron-based layered compound LaFeAsO1-xFx', Journal of Physics: Conference Series, vol. 150, no. 5, 052257. https://doi.org/10.1088/1742-6596/150/5/052257
Takahashi, H. ; Igawa, K. ; Takahashi, Y. ; Arii, K. ; Okada, H. ; Kamihara, Yoichi ; Hirano, M. ; Hosono, H. ; Matsubayashi, K. ; Uwatoko, Y. ; Nakano, S. ; Kikegawa, T. / Pressure enhancement of superconductivity in an iron-based layered compound LaFeAsO1-xFx. In: Journal of Physics: Conference Series. 2009 ; Vol. 150, No. 5.
@article{84e3a781329a417fb3cbd56748c4ec96,
title = "Pressure enhancement of superconductivity in an iron-based layered compound LaFeAsO1-xFx",
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.",
author = "H. Takahashi and K. Igawa and Y. Takahashi and K. Arii and H. Okada and Yoichi Kamihara and M. Hirano and H. Hosono and K. Matsubayashi and Y. Uwatoko and S. Nakano and T. Kikegawa",
year = "2009",
doi = "10.1088/1742-6596/150/5/052257",
language = "English",
volume = "150",
journal = "Journal of Physics: Conference Series",
issn = "1742-6588",
publisher = "IOP Publishing Ltd.",
number = "5",

}

TY - JOUR

T1 - Pressure enhancement of superconductivity in an iron-based layered compound LaFeAsO1-xFx

AU - Takahashi, H.

AU - Igawa, K.

AU - Takahashi, Y.

AU - Arii, K.

AU - Okada, H.

AU - Kamihara, Yoichi

AU - Hirano, M.

AU - Hosono, H.

AU - Matsubayashi, K.

AU - Uwatoko, Y.

AU - Nakano, S.

AU - Kikegawa, T.

PY - 2009

Y1 - 2009

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=77952501233&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77952501233&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/150/5/052257

DO - 10.1088/1742-6596/150/5/052257

M3 - Article

AN - SCOPUS:77952501233

VL - 150

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 5

M1 - 052257

ER -