Nuclear Quadrupole Interactions of<sup>7</sup>Li and<sup>51</sup>V in a Li<sub>3</sub>VO<sub>4</sub>Single Crystal Studied by Nuclear Magnetic Resonance
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- Lim Ae Ran
- Department of Physics, Jeonju University
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- Park Sung Ho
- Department of Chemistry, Jeonju University
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- Kim Jung Nam
- Department of Physics, Pusan National University
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- Jang Min Su
- Department of Physics, Pusan National University
書誌事項
- タイトル別名
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- Nuclear Quadrupole Interactions of 7Li and 51V in a Li3VO4 Single Crystal Studied by Nuclear Magnetic Resonance.
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説明
The rotation patterns of the nuclear magnetic resonances of 7Li (I=3⁄2) and 51V (I=7⁄2) in the nonlinear optical Li3VO4 single crystal were measured in two mutually perpendicular crystal planes. From these results, the quadrupole coupling constants and the asymmetry parameters at room temperature were determined for the first time as follows: e2qQ⁄h=53.68±2 kHz and η=0.169 for 7Li, and e2qQ⁄h=1.44±2 MHz and η=0 for 51V. The symmetry for the electric field gradient (EFG) of V ions surrounded by four oxygen atoms is higher than that of Li ions surrounded by four oxygen atoms. The principal axes of the EFG tensor are a=Y, b=Z, c=X for 7Li, and a=b=X, c=Z for 51V nucleus. Also, the 7Li and the 51V spin–lattice relaxation rates were measured, and the behavior is quite similar for both nuclei. The measured relaxation rate was found to be linear in the square of the temperature. The Raman process with a T2 dependence is considered to be more effective than the direct process for nuclear quadrupole relaxation.
収録刊行物
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- Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ
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Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ 72 (2), 419-423, 2003
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390001204185170816
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- NII論文ID
- 110001954424
- 210000104643
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- NII書誌ID
- AA00704814
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- BIBCODE
- 2003JPSJ...72..419L
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 6445075
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- 本文言語コード
- en
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