Nuclear Magnetic Relaxation and Ionic Conductivity in LiNaSO_4
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概要
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The temperature dependence of the spin-lattice relaxation time for ^7Li has been measured in a single crystal of LiNaSO_4 over the temperature range of 450K-770K. The result can be explained by a mechanism of vacancy diffusion. The activation energies for the hopping of Li^+ and Na^+ vacancies are estimated to be E_1 = 0.70 eV and E_2=1.20 eV, respectively. In addition, the ionic conductivity has been measured as a function of frequency from 500 Hz to 20 MHz and the value of 1.59 eV is deduced as the activation energy, E_m for the ionic diffusion in the extrinsic region. These values of E_1, E_2, E_m are well compared with the corresponding values of 0.70 eV, 1.24 eV and the intermediate value between 1.74 eV for Li^+ and 1.90 eV for Na^+ ions evaluated from the previous NMR measurements.
- 社団法人日本物理学会の論文
- 1994-09-15
著者
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OHNO Takashi
Department of Psychiatry, Tohoku University Graduate School of Medicine
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Takao Kohara
Department Of Material Science Faculty Of Science Himeji Institute Of Technology
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Kanashiro Tatsuo
Department Of Quantum Materials Science Institute Of Technology The University Of Tokushima
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Kanashiro T
Department Of Quantum Materials Science Institute Of Technology The University Of Tokushima
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KISHIMOTO Yutaka
Department of Physics, Faculty of Engineering, Tokushima University
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MICHIHIRO Yoshitaka
Department of Physics, Faculty of Engineering, The University of Tokushima
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Yamanishi Toshihiro
Department of Physics, Faculty of Engineering, Tokushima University
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Nobugai Kohji
The Institute of Scientific and Industrial Research, Osaka University
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Ohno T
Department Of Quantum Materials Science University Of Tokushima
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Nobugai Kohji
The Institute Of Scientific And Industrial Research Osaka University
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Kanashiro Tatsuo
Department Of Physics Faculty Of Engineering Tokushima University
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Yamanishi Toshihiro
Department Of Physics Faculty Of Engineering Tokushima University
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Ohno Takashi
Department Of Agrobioscience Graduate School Of Agriculture Kobe University
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MICHIHIRO Yoshitaka
Institute of Physics, University of Tsukuba
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