Enhanced Magnetization from Proton Irradiated Bulk van der Waals Magnet CrSiTe3

Abstract

Van der Waals (vdWs) crystals have attracted a great deal of scientific attention due to their interesting physical properties and widespread practical applications. Among all, CrSiTe3 (CST) is a ferromagnetic semiconductor with the Curie temperature (TC) of ~32 K. In this letter, we study the magnetic properties of bulk CST single-crystal upon proton irradiation with the fluence of 1x1018 protons/cm2. Most significantly, we observed an enhancement (23%) in the saturation magnetization from 3.9 μB to 4.8 μB and is accompanied by an increase in the coercive field (465-542 Oe) upon proton irradiation. Temperature-dependent X-band electron paramagnetic resonance measurements show no additional magnetically active defects/vacancies that are generated upon proton irradiation. The findings from X-ray photoelectron spectroscopy and Raman measurements lead us to believe that modification in the spin-lattice coupling and introduction of disorder could cause enhancement in saturation magnetization. This work demonstrates that proton irradiation is a feasible method in modifying the magnetic properties of vdWs crystals, which represents a significant step forward in designing future spintronic and magneto-electronic applications.

The results remain inconclusive

References in corpus (4)

• Induced Magnetic Ordering by Proton Irradiation in Graphite
• Magnetism in MoS2 induced by MeV proton irradiation
• Magnetic order and interactions in ferrimagnetic Mn3Si2Te6
• Contrasting the magnetism in La${}_{2-x}$Sr${}_x$FeCoO${}_6$ ($x$ = 0, 1, 2) double perovskites: the role of electronic and cationic disorder

Cited by in corpus (8)

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• Critical phenomena of the layered ferrimagnet Mn3Si2Te6 following proton irradiation
• Covalency, correlations, and inter-layer interactions governing the magnetic and electronic structure of Mn${}_3$Si${}_2$Te${}_6$
• Switchable in-plane anomalous Hall effect by magnetization orientation in monolayer ${\mathrm{Mn}}_3{\mathrm{Si}}_2{\mathrm{Te}}_6$
• Gap and magnetic engineering via doping and pressure in tuning the colossal magnetoresistance in (Mn${}_{1-x}$Mg${}_x$)${}_3$Si${}_2$Te${}_6$
• Coherent Spin-Phonon Coupling in the Layered Ferrimagnet Mn3Si2Te6