La-139 NQR relaxation in a superconductor La3Ir2Ge2
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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.
- 一般社団法人日本物理学会の論文
- 2004-12-15
著者
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KISHIMOTO Yutaka
Department of Physics, Faculty of Engineering, Tokushima University
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Kawasaki Yu
Department Of Materials Chemistry College Of Engineering Hosei University
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Shiokawa Y
Department Of Internal Medicine Juntendo University School Of Medicine
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Homma Y
Department Of Internal Medicine Tokai University School Of Medicine
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Ohno Takashi
Department Of Agrobioscience Graduate School Of Agriculture Kobe University
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Li DX
Department of Physics, Faculty of Engineering, University of Tokushima
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