Crystal Structures and Phase Transitions of the van-der-Waals Ferromagnet VI3

Abstract

The results of a single-crystal X-ray-diffraction study of the evolution of crystal structures of VI3 with temperature with emphasis on phase transitions are presented. Some related specific-heat and magnetization data are included. The existence of the room-temperature trigonal crystal structure R-3 (148) has been confirmed. Upon cooling, VI3 undergoes a structural phase transition to a monoclinic phase at Ts ~ 79 K. Ts is reduced in magnetic fields applied along the trigonal c-axis. When VI3 becomes ferromagnetic at TFM1 ~ 50 K, magnetostriction-induced changes of the monoclinic-structure parameters are observed. Upon further cooling, the monoclinic structure transforms into a triclinic variant at 32 K which is most likely occurring in conjunction with the previously reported transformation of the ferromagnetic structure. The observed phenomena are preliminarily attributed to strong magnetoelastic interactions.

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Cited by in corpus (28)

• VI3: a 2D Ising ferromagnet
• Critical behavior and magnetocaloric effect in VI${}_3$
• Ferroic orders in two-dimensional transition/rare-earth metal halides
• Pressure-induced huge increase of Curie temperature of the van der Waals ferromagnet VI3
• Large orbital magnetic moment in VI3
• Symmetry-based requirement for the measurement of electrical and thermal Hall conductivity under an in-plane magnetic field
• Valence band electronic structure of the van der Waals ferromagnetic insulators: VI${}_3$ and CrI${}_3$
• Strain tunability of perpendicular magnetic anisotropy in van der Waals ferromagnets VI3
• Crystallographic and magnetic structures of the VI${}_3$ and LiVI${}_3$ van der Waals compounds
• Magnetic order and its interplay with structure phase transition in van der Waals ferromagnet VI${}_3$
• Magnetic anisotropy in van-der-Waals ferromagnet VI3
• Two-dimensional ferromagnetic spin-orbital excitations in the honeycomb VI${}_3$
• Interplay of spin magnetism, orbital magnetism, and atomic structure in layered van der Waals ferromagnet VI${}_3$
• Ferromagnetic ferroelectricity due to the Kugel-Khomskii mechanism of the orbital ordering assisted by atomic Hund's second rule effects
• Crystal structure evolution in the van der Waals transition metal trihalides
• The surface degradation and its impact on the magnetic properties of bulk VI_3
• Probing magnetism in exfoliated VI${}_3$ layers with magnetotransport
• Dynamical correlation enhanced orbital magnetization in VI${}_3$
• Terahertz Magnetic and Lattice Excitations in van der Waals Ferromagnet VI3
• Robust intralayer antiferromagnetism and tricriticality in a van der Waals compound: VBr3 case
• Symmetry Analysis of Tensors in the Honeycomb Lattice of Edge-Sharing Octahedra
• Thermal Transport Properties of Magnons on the $\alpha$-T${}_3$ Lattice
• Polarization dependent photoemission as a probe of the magnetic ground state in the layered ferromagnet VI3
• Anisotropic hybridization probed by polarization dependent x-ray absorption spectroscopy in VI3 van der Waals Mott ferromagnet
• Lattice and magnetic structure in the van der Waals antiferromagnet VBr3
• Evidence of temperature-dependent interplay between spin and orbital moment in van der Waals ferromagnet VI3
• Quasi-two-dimensional ferromagnetism in the triangular magnet EuAl${}_{12}$O${}_{19}$
• Ferromagnetic Ferroelectricity due to Orbital Ordering