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

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.

arXiv comment4 pages, 3 figures for a main text with supplemental information

References in corpus (7)

• Spin singlet formation in MgTi${}_2$O${}_4$: evidence of a helical dimerization pattern
• A valence bond liquid on the honeycomb lattice
• Anomalous metallic state in the vicinity of Metal to Valence Bond Solid insulator transition in LiVS2
• Band Jahn-Teller Instability and Formation of Valence Bond Solid in a Mixed-Valent Spinel Oxide LiRh2O4
• Large entropy change derived from the orbitally assisted three-centered two-electron σ bond formation in a metallic Li0.33VS2
• Trimer Formation and Metal-Insulator Transition in Orbital Degenerate Systems on a Triangular Lattice
• Mott-to-Goodenough insulator-insulator transition in LiVO${}_2$

Cited by in corpus (12)

• Orbital effects in solids: basics, recent progress and opportunities
• Regular-Triangle Trimer and Charge Order Preserving the Anderson Condition in the Pyrochlore Structure of CsW${}_2$O${}_6$
• Slow dynamics of disordered zigzag chain molecules in layered LiVS2 under electron irradiation
• Observation of local atomic displacements intrinsic to the double zigzag chain structure of 1T-MTe2 (M = V, Nb, Ta)
• Short-range order and increased transition temperature in LiVO2 with weakened trimer frustration
• Robust atomic orbital in the cluster magnet LiMoO2
• Charge-ordered state satisfying the Anderson condition in LiRh2O4 arising from local dimer order
• Zigzag chain order of LiVSe${}_2$ developing away from the vanadium trimer phase transition boundary
• Hidden spin-orbital hexagonal ordering induced by strong correlations in LiVS${}_2$
• Reexamination of the charge-ordered dimer pattern in the spinel compound CuIr2S4 using single-crystal synchrotron x-ray diffraction
• Structural dimerization and charge-orbital ordering in a ferromagnetic semiconductor LiV2S4 monolayer
• Metallic state in the vicinity of molecular orbital crystallization in the d${}^1$ thiospinel ZnTi${}_2$S${}_4$ prepared via a reductive ion-exchange reaction