Observation of the partial fermi surface quenching in the noncentrosymmetric superconductor Mo3Al2C

Takehide Koyama; Ozaki Yutaka; Ko Ichi Ueda; Takeshi Mito; Takao Kohara; Takeshi Waki; Yoshikazu Tabata; Chishiro Michioka; Kazuyoshi Yoshimura; Michi To Suzuki; Hiroyuki Nakamura

doi:10.1143/JPSJS.81SB.SB008

Observation of the partial fermi surface quenching in the noncentrosymmetric superconductor Mo₃Al₂C

Takehide Koyama, Ozaki Yutaka, Ko Ichi Ueda, Takeshi Mito, Takao Kohara, Takeshi Waki, Yoshikazu Tabata, Chishiro Michioka, Kazuyoshi Yoshimura, Michi To Suzuki, Hiroyuki Nakamura

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

1 Citation (Scopus)

Abstract

We study the normal state properties of a noncentrosymmetric superconductor Mo₃Al₂C by means of the nuclear magnetic resonance (NMR) experiment. The change of NMR line shape and the peak of the nuclear spin-echo decay rate at≃ 130 K indicate that the Mo3Al2C exhibits the phase transition prior to the emergence of superconductivity. The reduction in the conduction electron density is inferred from the decrease in the nuclear spin-lattice relaxation rate. By considering the result of the energy band calculation, we discussed the nature of the newly found phase transition.

Original language	English
Article number	SB008
Journal	journal of the physical society of japan
Volume	81
Issue number	SUPPL.B
DOIs	https://doi.org/10.1143/JPSJS.81SB.SB008
Publication status	Published - 2012 Sept
Externally published	Yes

Keywords

NMR
Noncentrosymmetric superconductivity

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJS.81SB.SB008

Cite this

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title = "Observation of the partial fermi surface quenching in the noncentrosymmetric superconductor Mo3Al2C",

abstract = "We study the normal state properties of a noncentrosymmetric superconductor Mo3Al2C by means of the nuclear magnetic resonance (NMR) experiment. The change of NMR line shape and the peak of the nuclear spin-echo decay rate at≃ 130 K indicate that the Mo3Al2C exhibits the phase transition prior to the emergence of superconductivity. The reduction in the conduction electron density is inferred from the decrease in the nuclear spin-lattice relaxation rate. By considering the result of the energy band calculation, we discussed the nature of the newly found phase transition.",

keywords = "NMR, Noncentrosymmetric superconductivity",

author = "Takehide Koyama and Ozaki Yutaka and Ueda, {Ko Ichi} and Takeshi Mito and Takao Kohara and Takeshi Waki and Yoshikazu Tabata and Chishiro Michioka and Kazuyoshi Yoshimura and Suzuki, {Michi To} and Hiroyuki Nakamura",

year = "2012",

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doi = "10.1143/JPSJS.81SB.SB008",

language = "English",

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journal = "Journal of the Physical Society of Japan",

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T1 - Observation of the partial fermi surface quenching in the noncentrosymmetric superconductor Mo3Al2C

AU - Koyama, Takehide

AU - Yutaka, Ozaki

AU - Ueda, Ko Ichi

AU - Mito, Takeshi

AU - Kohara, Takao

AU - Waki, Takeshi

AU - Tabata, Yoshikazu

AU - Michioka, Chishiro

AU - Yoshimura, Kazuyoshi

AU - Suzuki, Michi To

AU - Nakamura, Hiroyuki

PY - 2012/9

Y1 - 2012/9

N2 - We study the normal state properties of a noncentrosymmetric superconductor Mo3Al2C by means of the nuclear magnetic resonance (NMR) experiment. The change of NMR line shape and the peak of the nuclear spin-echo decay rate at≃ 130 K indicate that the Mo3Al2C exhibits the phase transition prior to the emergence of superconductivity. The reduction in the conduction electron density is inferred from the decrease in the nuclear spin-lattice relaxation rate. By considering the result of the energy band calculation, we discussed the nature of the newly found phase transition.

AB - We study the normal state properties of a noncentrosymmetric superconductor Mo3Al2C by means of the nuclear magnetic resonance (NMR) experiment. The change of NMR line shape and the peak of the nuclear spin-echo decay rate at≃ 130 K indicate that the Mo3Al2C exhibits the phase transition prior to the emergence of superconductivity. The reduction in the conduction electron density is inferred from the decrease in the nuclear spin-lattice relaxation rate. By considering the result of the energy band calculation, we discussed the nature of the newly found phase transition.

KW - NMR

KW - Noncentrosymmetric superconductivity

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