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 journalArticlepeer-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 languageEnglish
Article numberSB008
Journaljournal of the physical society of japan
Volume81
Issue numberSUPPL.B
DOIs
Publication statusPublished - 2012 Sep
Externally publishedYes

Keywords

  • NMR
  • Noncentrosymmetric superconductivity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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