μ SR study of magnetic ground state in Mo3Sb7

H. Okabe; J. Akimitsu; S. Takeshita; M. Miyazaki; M. Hiraishi; R. Kadono

doi:10.1016/j.physb.2008.11.184

μ SR study of magnetic ground state in Mo₃Sb₇

H. Okabe, J. Akimitsu, S. Takeshita, M. Miyazaki, M. Hiraishi, R. Kadono

Research Institute for Interdisciplinary Science

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

μ SR study on the anomalous magnetic behavior of an intermetallic superconductor Mo₃Sb₇ is reported. Muon depolarization rate due to dynamically fluctuating electronic spins is reduced with decreasing temperature, which is in line with the development of a spin-liquid state. Meanwhile, the detailed analysis of structural deformation below 50 K suggests that the presumed spin-gap is not fully opened, and that the magnetic state just above T_c might be understood as an itinerant paramagnetic state with localized spin-singlets.

Original language	English
Pages (from-to)	743-745
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	404
Issue number	5-7
DOIs	https://doi.org/10.1016/j.physb.2008.11.184
Publication status	Published - Apr 15 2009

Keywords

Spin-gap
Superconductivity
μ SR

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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title = "μ SR study of magnetic ground state in Mo3Sb7",

abstract = "μ SR study on the anomalous magnetic behavior of an intermetallic superconductor Mo3Sb7 is reported. Muon depolarization rate due to dynamically fluctuating electronic spins is reduced with decreasing temperature, which is in line with the development of a spin-liquid state. Meanwhile, the detailed analysis of structural deformation below 50 K suggests that the presumed spin-gap is not fully opened, and that the magnetic state just above Tc might be understood as an itinerant paramagnetic state with localized spin-singlets.",

keywords = "Spin-gap, Superconductivity, μ SR",

author = "H. Okabe and J. Akimitsu and S. Takeshita and M. Miyazaki and M. Hiraishi and R. Kadono",

note = "Funding Information: We would like to thank TRIUMF staff for technical support during our experiment. This work was financially supported by a Grant-in-Aid for Scientific Research in Priority Area “Invention of Anomalous Quantum Materials” (no. 16076212) and the “High-Tech Research Center” project for private universities from the Ministry of Education, Culture, Sports, Science and Technology of Japan. ",

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AU - Okabe, H.

AU - Akimitsu, J.

AU - Takeshita, S.

AU - Miyazaki, M.

AU - Hiraishi, M.

AU - Kadono, R.

N1 - Funding Information: We would like to thank TRIUMF staff for technical support during our experiment. This work was financially supported by a Grant-in-Aid for Scientific Research in Priority Area “Invention of Anomalous Quantum Materials” (no. 16076212) and the “High-Tech Research Center” project for private universities from the Ministry of Education, Culture, Sports, Science and Technology of Japan.

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AB - μ SR study on the anomalous magnetic behavior of an intermetallic superconductor Mo3Sb7 is reported. Muon depolarization rate due to dynamically fluctuating electronic spins is reduced with decreasing temperature, which is in line with the development of a spin-liquid state. Meanwhile, the detailed analysis of structural deformation below 50 K suggests that the presumed spin-gap is not fully opened, and that the magnetic state just above Tc might be understood as an itinerant paramagnetic state with localized spin-singlets.

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