La-NQR study of superconductivity in La3Ir2Ge 2

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

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


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.

Original languageEnglish
Pages (from-to)503-505
Number of pages3
JournalPhysica B: Condensed Matter
Issue numberSPEC. ISS.
Publication statusPublished - 2005 Apr 30


  • LaIrGe
  • NQR
  • Superconductivity


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