^<139>La NQR Relaxation in a Superconductor La_3Ir_2Ge_2(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
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To investigate the electronic state of La_3Ir_2Ge_2, we have carried out ^<139>La-NQR measurement. In the normal state, the spin-lattice relaxation rate 1/T_1 is proportional to the temperature T 1/T_1 shows a small coherence peak just below the superconducting transition temperature T_c = 4.7 K and decreases exponentially well below T_c. La_3Ir_2Ge_2 is found to be a BCS superconductor with an energy gap 2Δ (0) = 3 52k_BT_c.
- 社団法人日本物理学会の論文
- 2004-12-15
著者
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KOBAYASHI Yoshio
Nishina Center for Accelerator Based Science
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OHNO Takashi
Department of Psychiatry, Tohoku University Graduate School of Medicine
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Li D
Tohoku Univ. Ibaraki Jpn
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KISHIMOTO Yutaka
Department of Physics, Faculty of Engineering, Tokushima University
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KAWASAKI Yu
Department of Physics, Faculty of Engineering, Tokushima University
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Kitaoka Y.
Graduate School Of Science Osaka University
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Li Dexin
Department Of Physics
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Koike Yoshihiro
Advanced Science Research Center Japan Atomic Energy Research Institute
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HOMMA Yoshiya
Department of Physics, Faculty of Engineering, University of Tokushima
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SHIOKAWA Yoshinobu
Department of Physics, Faculty of Engineering, University of Tokushima
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Shiokawa Yoshinobu
Department Of Physics Faculty Of Engineering University Of Tokushima
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Homma Yoshiya
Department Of Physics Faculty Of Engineering University Of Tokushima
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Kawasaki Y
Department Of Quantum Materials Science University Of Tokushima
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Kawasaki Yu
Department Of Materials Chemistry College Of Engineering Hosei University
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Kitaoka Y
Osaka Univ. Osaka Jpn
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Ohno Takashi
Department Of Agrobioscience Graduate School Of Agriculture Kobe University
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