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arXiv · 1910.01337

Vanadium trimers randomly aligned along the c-axis direction in layered LiVO2

K. Kojima·N. Katayama·S. Tamura·M. Shiomi·H. Sawa
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Abstract

Herein, we discuss the identification of vanadium trimers in layered LiVO2 and its sulfide analog of LiVS2 with two-dimensional triangular lattices. Our comprehensive structural studies using synchrotron X-ray diffraction experiments clarified that vanadium trimers are randomly aligned along the c-axis direction in LiVO2, while the long-range ordering of vanadium trimers along the c-axis direction appears in LiVS2. Our results solve the longstanding issue of cluster patterns in LiVO2 and provide an experimental basis for identifying the mechanism of trimer formation.

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K. Kojima, N. Katayama, S. Tamura, M. Shiomi, H. Sawa. 2019-10-03. Vanadium trimers randomly aligned along the c-axis direction in layered LiVO2. https://doi.org/10.1103/physrevb.100.235120

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