Crystal Growth and Anisotropic Magnetic Properties of Quasi-2D (Fe${}_{1-x}$Ni${}_x$)${}_2$P${}_2$S${}_6$

Abstract

We report the crystal growth by chemical vapor transport together with a thorough structural and magnetic characterization of the quasi-2D magnets (Fe${}_{1-x}$Ni${}_x$)${}_2$P${}_2$S${}_6$ with $x_\textrm{Ni} = \textrm{0, 0.3, 0.5, 0.7, 0.9 & 1}$. As-grown crystals exhibit a layered morphology with weak van der Waals interactions between layers parallel to the crystallographic $ab$ plane of the monoclinic structure in the space group $C2/m$ (No. 12). Magnetization measurements reveal an antiferromagnetic ground state for all grown crystals. In the ordered state, the magnetization along different crystallographic directions is in agreement with an Ising anisotropy for $0\le x\le 0.9$ and only for Ni${}_2$P${}_2$S${}_6$ a different behavior is observed which is line with an anisotropic Heisenberg or XXZ model description. This striking abrupt change of anisotropy at a critical Ni concentration is coupled to a change in the width of the maximum in the magnetization around $T_{\text{max}}$. Furthermore, all intermediate compounds $0<x\le 0.9$ exhibit an anisotropic magnetization already in the paramagnetic state similar to the parent compound Fe${}_2$P${}_2$S${}_6$.

11 pages, 8 figures, 48 references

References in corpus (5)

• Magnetic 2D materials and heterostructures
• Ising-Type Magnetic Ordering in Atomically Thin FePS3
• Suppression of magnetic ordering in XXZ-type antiferromagnetic monolayer NiPS3
• Tuning magnetic and transport properties in quasi-2D (Mn${}_{1-x}$Ni${}_x$)${}_2$P${}_2$S${}_6$ single crystals
• Quasi-2D magnetic correlations in Ni${}_2$P${}_2$S${}_6$ probed by ${}^{31}$P NMR

Cited by in corpus (12)

• Controlling magnetic exchange and anisotropy by non-magnetic ligand substitution in layered MPX3 (M = Ni, Mn; X = S, Se)
• Tuning magnetic and transport properties in quasi-2D (Mn${}_{1-x}$Ni${}_x$)${}_2$P${}_2$S${}_6$ single crystals
• Magnetic Anisotropy in Two-dimensional van der Waals Magnetic Materials and Their Heterostructures: Importance, Mechanisms, and Opportunities
• Low-energy excitations and magnetic anisotropy of the layered van der Waals antiferromagnet Ni${}_2$P${}_2$S${}_6$
• Understanding and tuning magnetism in layered Ising-type antiferromagnet FePSe3 for potential 2D magnet
• Magnetic anisotropy and low-energy spin dynamics in the van der Waals compounds Mn${}_2$P${}_2$S${}_6$ and MnNiP${}_2$S${}_6$
• Evolution of magnetic phase in two dimensional van der Waals Mn${}_{1-x}$Ni${}_x$PS${}_3$ single crystals
• Electron Spin Resonance Spectroscopy on Magnetic Van der Waals Compounds
• Fluctuating Fractionalized Spins in Quasi Two-dimensional Magnetic V0.85PS3
• Field-induced spin polarization in lightly Cr-substituted layered antiferromagnet NiPS3
• Evolution of the spin dynamics in the van der Waals system $M_{\text{2}}$P${}_{\text{2}}$S${}_{\text{6}}$ (${\mathbf{M}}_{\text{2}}$ = Mn${}_{\text{2}}$, MnNi, Ni${}_{\text{2}}$) series probed by electron spin resonance spectroscopy
• Spin and lattice dynamics of a van der Waals antiferromagnet MnPSe${}_3$