La-NQR study of superconductivity in La3Ir2Ge 2

Yutaka Kishimoto, Yu Kawasaki, Takashi Ohno, Dexin Li, Yoshiya Homma, Yoshinobu Shiokawa

研究成果: Article査読

1 被引用数 (Scopus)

抄録

139La-NQR measurement has been made in a superconductor La3Ir2Ge2. The spin-lattice relaxation rate 1/T1 measured in the normal state is proportional to the temperature T, indicating that La3Ir2Ge2 is a simple metal. In the superconducting state, a small coherence peak in 1/T1 appears just below the superconducting transition temperature Tc=4.7K and 1/T1 decreases exponentially well below Tc with decreasing temperatures. It is concluded that La3Ir2Ge2 is a BCS superconductor with an energy gap 2Δ(0)/kBTc=3.52.

本文言語English
ページ(範囲)503-505
ページ数3
ジャーナルPhysica B: Condensed Matter
359-361
SPEC. ISS.
DOI
出版ステータスPublished - 2005 4 30

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学

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