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Li local configurations for the trimerized state of the geometrically frustrated triangular lattice system Li(1-x)V
Kenjiro Takao1, Masashige Onoda
1Institute of Physics, University of Tsukuba, Tennodai, Tsukuba 305-8571, Japan.
Abstract:
The Li de-intercalation effects for the trimerized state of the geometrically frustrated triangular lattice LiV O(2) are investigated through measurements of x-ray diffraction, magnetic susceptibility and magic-angle spinning-nuclear magnetic resonance (MAS-NMR). Li(1-x)V O(2) with 0 ≤ x ≤ 0.14 obtained with a soft-chemistry synthesis is a single phase. All of the data are understood by considering that the partial substitution for V(3+) (spin-1) with V(4+) (spin-½) leads to the coexistence of the spin-singlet and spin-½ trimers.
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