Coexistence of supercondcutivity and magnetism in LaFeAs(O 0.94F0.06) probed by muon spin relaxation

Soshi Takeshita; Ryosuke Kadono; Masatoshi Hiraishi; Masanori Miyazaki; Akihiro Koda; Yoichi Kamihara; Hideo Hosono

doi:10.1143/JPSJ.77.103703

Coexistence of supercondcutivity and magnetism in LaFeAs(O _0.94F_0.06) probed by muon spin relaxation

Soshi Takeshita, Ryosuke Kadono, Masatoshi Hiraishi, Masanori Miyazaki, Akihiro Koda, Yoichi Kamihara, Hideo Hosono

Research output: Contribution to journal › Article

30 Citations (Scopus)

Abstract

The presence of macroscopic phase separation into superconducting and spin-glass-like magnetic phases in LaFeAs(O_1-xF_x) is demonstrated by muon spin rotation measurement in a sample near the phase boundary (x = 0:06). Both magnetism and superconductivity develop simultaneously below a common critical temperature, T_m ≃ T_c ≃ 18 K. This remarkable accordance strongly suggests that the electronic correlations leading to these two competing ground states share a common origin.

Original language	English
Article number	103703
Journal	Journal of the Physical Society of Japan
Volume	77
Issue number	10
DOIs	https://doi.org/10.1143/JPSJ.77.103703
Publication status	Published - 2008 Oct
Externally published	Yes

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muon spin rotation

spin glass

muons

critical temperature

superconductivity

ground state

electronics

Keywords

Electronic correlation
Magnetism
Muon spin rotation
Oxypnictide superconductor

ASJC Scopus subject areas

Physics and Astronomy(all)

Cite this

Takeshita, S., Kadono, R., Hiraishi, M., Miyazaki, M., Koda, A., Kamihara, Y., & Hosono, H. (2008). Coexistence of supercondcutivity and magnetism in LaFeAs(O _0.94F_0.06) probed by muon spin relaxation. Journal of the Physical Society of Japan, 77(10), [103703]. https://doi.org/10.1143/JPSJ.77.103703

Coexistence of supercondcutivity and magnetism in LaFeAs(O _0.94F_0.06) probed by muon spin relaxation. / Takeshita, Soshi; Kadono, Ryosuke; Hiraishi, Masatoshi; Miyazaki, Masanori; Koda, Akihiro; Kamihara, Yoichi; Hosono, Hideo.

In: Journal of the Physical Society of Japan, Vol. 77, No. 10, 103703, 10.2008.

Research output: Contribution to journal › Article

Takeshita, S, Kadono, R, Hiraishi, M, Miyazaki, M, Koda, A, Kamihara, Y & Hosono, H 2008, 'Coexistence of supercondcutivity and magnetism in LaFeAs(O _0.94F_0.06) probed by muon spin relaxation', Journal of the Physical Society of Japan, vol. 77, no. 10, 103703. https://doi.org/10.1143/JPSJ.77.103703

Takeshita S, Kadono R, Hiraishi M, Miyazaki M, Koda A, Kamihara Y et al. Coexistence of supercondcutivity and magnetism in LaFeAs(O _0.94F_0.06) probed by muon spin relaxation. Journal of the Physical Society of Japan. 2008 Oct;77(10). 103703. https://doi.org/10.1143/JPSJ.77.103703

Takeshita, Soshi ; Kadono, Ryosuke ; Hiraishi, Masatoshi ; Miyazaki, Masanori ; Koda, Akihiro ; Kamihara, Yoichi ; Hosono, Hideo. / Coexistence of supercondcutivity and magnetism in LaFeAs(O _0.94F_0.06) probed by muon spin relaxation. In: Journal of the Physical Society of Japan. 2008 ; Vol. 77, No. 10.

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10.1143/JPSJ.77.103703