The Effect of Nickel Substitution on Magnetism in the Layered van der Waals Ferromagnet Fe${}_3$GeTe${}_2$

Abstract

We have grown a series of nickel substituted single crystals of the layered ferromagnet (FM) Fe${}_3$GeTe${}_2$. The large single crystalline samples of (Fe${}_{1-x}$Ni${}_x$)${}_3$GeTe${}_2$ with $x=0-0.84$ were characterized with single crystal X-ray diffraction, magnetic susceptibility, electrical resistance and muon spin spectroscopy. We find Fe can be continuously substituted with Ni with only minor structural variation. In addition, FM order is suppressed from $T_{\mathrm{C}}=212$~K for $x=0$ down to $T_{\mathrm{C}}=50$~K for $x=0.3$, which is accompanied with a strong suppression of saturated and effective moment, and Curie-Weiss temperature. Beyond $x=0.3$, the FM order is continuously smeared into a FM cluster glass phase, with a nearly full magnetic volume fraction. We attribute the observed change in the nature of magnetic order to the intrinsically disordered structure of Fe${}_3$GeTe${}_2$ and subsequent dilution effects from the Ni substitution.

References in corpus (17)

• Spin-polarized muons in condensed matter physics
• Metallic Quantum Ferromagnets
• Use of frit-disc crucibles for routine and exploratory solution growth of single crystalline samples
• Magnetic structure and phase stability of the van der Waals bonded ferromagnet Fe3-xGeTe2
• Quantum Phase Transitions in the Itinerant Ferromagnet ZrZn${}_2$
• Muon spin rotation and relaxation in magnetic materials
• Tricritical point and wing structure in the itinerant ferromagnet UGe2
• Kondo-Cluster-Glass State near a Ferromagnetic Quantum Phase Transition
• Quantum Griffiths Phase in the weak itinerant ferromagnetic alloy Ni${}_{1-x}$V${}_x$
• Ferromagnetic Quantum Critical Point Avoided by the Appearance of Another Magnetic Phase in LaCrGe${}_3$ under Pressure
• Tricritical wings and modulated magnetic phases in LaCrGe${}_3$ under pressure
• Spectroscopic perspective on the interplay between electronic and magnetic properties of magnetically doped topological insulators
• X-Ray diffraction on large single crystals using a powder diffractometer
• Disorder promotes ferromagnetism: Rounding of the quantum phase transition in Sr_{1-x}Ca_xRuO_3
• Staggered magnetization, critical behavior and weak ferromagnetic propert ies of LaMnO${}_3$ by muon spin rotation
• The influence of magnetic sublattice dilution on magnetic order in CeNiGe3 and UNiSi2
• Search for quantum criticality in a ferromagnetic system UNi1-xCoxSi2

Cited by in corpus (12)

• Highly efficient spin-orbit torque and switching of layered ferromagnet Fe3GeTe2
• New Materials Physics
• Tunable magnetic properties in van der Waals crystals (Fe${}_{1-x}$Co${}_x$)${}_5$GeTe${}_2$
• Tuning Magnetic Order in the van der Waals Metal Fe5GeTe2 by Cobalt Substitution
• Domain wall pinning and hard magnetic phase in Co-doped bulk single crystalline Fe3GeTe2
• Ubiquitous Spin Freezing in the Superconducting State of UTe2
• Tuning the Room Temperature Ferromagnetism in Fe5GeTe2 by Arsenic Substitution
• Antiferromagnetic fluctuations and orbital-selective Mott transition in the van der Waals ferromagnet Fe3-xGeTe2
• Sign-reversed anomalous Nernst effect in the ferromagnetic Weyl-semimetal Fe${}_{3-x}$GeTe${}_2$: the role of Fe vacancies
• Modification of unconventional Hall effect with doping at the non-magnetic site in a 2D van der Waals ferromagnet
• Field-induced spin polarization in lightly Cr-substituted layered antiferromagnet NiPS3
• Unconventional Hall effect and its variation with Co-doping in van der Waals Fe3GeTe2