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 › peer-review

31 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

Keywords

Electronic correlation
Magnetism
Muon spin rotation
Oxypnictide superconductor

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.77.103703

Cite this

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

abstract = "The presence of macroscopic phase separation into superconducting and spin-glass-like magnetic phases in LaFeAs(O1-xFx) 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, Tm ≃ Tc ≃ 18 K. This remarkable accordance strongly suggests that the electronic correlations leading to these two competing ground states share a common origin.",

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T1 - Coexistence of supercondcutivity and magnetism in LaFeAs(O 0.94F0.06) probed by muon spin relaxation

AU - Takeshita, Soshi

AU - Kadono, Ryosuke

AU - Hiraishi, Masatoshi

AU - Miyazaki, Masanori

AU - Koda, Akihiro

AU - Kamihara, Yoichi

AU - Hosono, Hideo

PY - 2008/10

Y1 - 2008/10

N2 - The presence of macroscopic phase separation into superconducting and spin-glass-like magnetic phases in LaFeAs(O1-xFx) 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, Tm ≃ Tc ≃ 18 K. This remarkable accordance strongly suggests that the electronic correlations leading to these two competing ground states share a common origin.

AB - The presence of macroscopic phase separation into superconducting and spin-glass-like magnetic phases in LaFeAs(O1-xFx) 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, Tm ≃ Tc ≃ 18 K. This remarkable accordance strongly suggests that the electronic correlations leading to these two competing ground states share a common origin.

KW - Electronic correlation

KW - Magnetism

KW - Muon spin rotation

KW - Oxypnictide superconductor

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