7Li and 51V NMR studies on local symmetry and charge disproportionation in quasi-one-dimensional conductor β-Li0.33V2O5

7Li and 51V NMR studies on local symmetry and charge disproportionation in quasi-one-dimensional conductor β-Li0.33V2O5
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准一维导体β-Li0.33V2O5局部对称性和电荷歧化的7Li和51V NMR研究

DOI:
10.1088/1742-6596/200/1/012234
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发表时间:
2010
期刊:
--
影响因子:
--
通讯作者:
Y. Ueda
Y. Ueda
中科院分区:
--
文献类型:
--
作者:
I. Yamauchi;M. Itoh;T. Yamauchi;J. Yamaura;Y. Ueda

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我们对单晶进行了 7Li 和 51V NMR 测量,以研究准一维导体 β-Li0.33V2O5 金属相的局部对称性和电荷歧化。确定了 Li 位点的电四极张量,并根据最近的 X 射线衍射结果讨论了 Li 的有序性。我们还报告了 51V 奈特位移和 51V 核自旋晶格弛豫率的温度依赖性,表明即使在金属相中也存在电荷歧化。
We have made 7Li and 51V NMR measurements on a single crystal to investigate the local symmetry and the charge disproportionation in the metallic phase of the quasi-one-dimensional conductor β-Li0.33V2O5. The electric quadrupole tensors at the Li sites are determined and the Li ordering is discussed on the basis of the recent X-ray diffraction results. We also report the temperature dependence of the 51V Knight shift and the 51V nuclear spin-lattice relaxation rate, indicating the presence of the charge disproportionation even in the metallic phase.
DOI: --
发表时间: 2006
期刊: Phys. Rev. B 73
影响因子: --
作者:
T.Suzuki;I.Yamauchi;M.Itoh;T.Yamauchi;Y.Ueda
通讯作者: Y.Ueda