139La NQR Relaxation in a Superconductor La3Ir2Ge2

• Kishimoto Yutaka

  Department of Physics, Faculty of Engineering, University of Tokushima

• Kawasaki Yu

  Department of Physics, Faculty of Engineering, University of Tokushima

• Ohno Takashi

  Department of Physics, Faculty of Engineering, University of Tokushima

• Li Dexin

  Department of Physics, Faculty of Engineering, University of Tokushima

• Homma Yoshiya

  Department of Physics, Faculty of Engineering, University of Tokushima

• Shiokawa Yoshinobu

  Department of Physics, Faculty of Engineering, University of Tokushima

Bibliographic Information

Other Title

• ¹³⁹La NQR Relaxation in a Superconductor La₃Ir₂Ge₂

Abstract

To investigate the electronic state of La₃Ir₂Ge₂, we have carried out ¹³⁹La-NQR measurement. In the normal state, the spin–lattice relaxation rate 1⁄T₁ is proportional to the temperature T. 1⁄T₁ shows a small coherence peak just below the superconducting transition temperature T_c=4.7 K and decreases exponentially well below T_c. La₃Ir₂Ge₂ is found to be a BCS superconductor with an energy gap 2Δ(0)=3.52k_BT_c.

Journal

• Journal of the Physical Society of Japan

  Journal of the Physical Society of Japan 73 (12), 3389-3393, 2004

  THE PHYSICAL SOCIETY OF JAPAN

Keywords

• La<SUB>3</SUB>Ir<SUB>2</SUB>Ge<SUB>2</SUB>
• superconductor
• NQR
• spectrum
• spin–lattice relaxation

Details

• CRID: 1390001204188084480
• NII Article ID: 210000105208
• NII Article ID: 110001979310
• NII Book ID: AA00704814
• DOI: 10.1143/jpsj.73.3389
• BIBCODE: 2004JPSJ...73.3389K
• ISSN: 13474073
• ISSN: 00319015
• NDL BIB ID: 7186081
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7186081
• Web Site: http://journals.jps.jp/doi/pdf/10.1143/JPSJ.73.3389
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed