NMR in KH_2PO_4 by Double Resonance Method
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概要
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NMR singles of the potassium in KH_2PO_4 were detected by means of the double resonance technique in the rotating reference frame, and the electric quadrupole coupling constants and associated parameters were determined in the paraelectric (290°K) and ferroelectric (77°K) phases. At 290°K, the electric field gradient at the site of the potassium is axially symmetric (η=0) and |eQq/h|=1.68 MHz for K^<39>. At 77°K, |eQq/h|=1.479 MHz for K^<39> and 1.796 MHz for K^<41> with the asymmetry parameter η=0.696. The major principal axis of the electric field gradient tensor coincided with the Z(c)-axis in both phases. The values of the electric field gradient were calculated by using point charge model in both paraelectric and ferroelectric phases and compared with the experimental ones.
- 社団法人日本物理学会の論文
- 1969-01-05
著者
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Hashi Tsuneo
Department Of Physics Kyoto University
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Hashi Tsuneo
Department Of Physics Faculity Of Science Kyoto University
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TERAO Takehiko
Department of Chemistry, Graduate School of Science, Kyoto University
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Terao Takehiko
Department Of Physics Kyoto University
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KUNITOMO Masakazu
Department of Physics, Faculty of Science, Kobe University
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TSUTSUMI Yoshitaka
Department of Physics, Kyoto University
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Kunitomo Masakazu
Department Of Physics Kyoto University
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Tsutsumi Yoshitaka
Department Of Physics Faculity Of Science Kyoto University
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TSUTSUMI YOSHITAKA
Department of Anesthesiology, Kurume University School of Medicine
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