Intricate magnetic interactions and topological Hall effect observed in itinerant room-temperature layered ferromagnet Cr0.83Te

Abstract

We report the magnetic, electrical, and magnetotransport (Hall effect) properties of the hexagonal itinerant ferromagnet Cr${}_{0.83}$Te. Further, a comprehensive study of the magneto-entropy scaling behavior has been done around the Curie temperature of $T_C\approx$ 338 K. A maximum entropy change (-$\Delta S_m^{max}$) of 2.77 $J/kg-K$ and relative cooling power (RCP) of 88.29 $J/kg$ near the T${}_C$ have been achieved under an applied magnetic field of 5 Tesla. The critical exponents, $\beta$ = 0.4739(4), $\gamma$ = 1.2812(3), and $\delta$ = 3.7037(5), have been extracted using the magneto-entropy scaling analysis. The obtained critical exponents indicate the presence of intricate magnetic interactions in Cr${}_{0.83}$Te. On the other hand, the magnetotransport study reveals a topological Hall effect attributed to the noncoplanar spin structure coexisting with a robust magnetocrystalline anisotropy. Further, we observe that the extrinsic skew-scattering mechanism originated anomalous Hall effect. Our experimental findings of the anomalous and topological Hall effect properties in the presence of intriguing high-temperature itinerant ferromagnetism and magnetocaloric effect in Cr${}_{0.83}$Te can offer potential technological applications at room temperature.

12 pages, 6 figures

References in corpus (26)

• Van der Waals heterostructures
• Layer-dependent Ferromagnetism in a van der Waals Crystal down to the Monolayer Limit
• Discovery of intrinsic ferromagnetism in 2D van der Waals crystals
• Anomalous Hall effect
• Gate-tunable Room-temperature Ferromagnetism in Two-dimensional Fe${}_3$GeTe${}_2$
• Magnetic 2D materials and heterostructures
• Two-Dimensional Itinerant Ising Ferromagnetism in Atomically thin Fe3GeTe2
• Emergent Phenomena Induced by Spin-Orbit Coupling at Surfaces and Interfaces
• Skyrmions and Anomalous Hall Effect in a Dzyloshinskii-Moriya Spiral Magnet
• Ligand-field helical luminescence in a 2D ferromagnetic insulator
• Robust formation of skyrmions and topological Hall effect in epitaxial thin films of MnSi
• Linear magnetization dependence of the intrinsic anomalous Hall effect
• Intrinsic 2D-XY ferromagnetism in a van der Waals monolayer
• Two dimensional magnets: Forgotten history and recent progress towards spintronic applications
• Magnetic Correlations in the Quasi-2D Semiconducting Ferromagnet CrSiTe${}_3$
• Topological Hall effect at above room temperature in heterostructures composed of a magnetic insulator and a heavy metal
• Spin chirality fluctuation in two-dimensional ferromagnets with perpendicular anisotropy
• Perpendicular magnetic anisotropy and spin glass-like behavior in molecular beam epitaxy grown chromium telluride thin films
• Anisotropic magnetocaloric effect in single crystals of CrI${}_3$
• Anisotropic magnetic entropy change in Cr${}_2$X${}_2$Te${}_6$ (X = Si and Ge)
• Interplay of voltage control of magnetic anisotropy, spin transfer torque, and heat in the spin-orbit torque switching in three-terminal magnetic tunnel junctions
• Magnetic anisotropy and entropy change in trigonal Cr${}_{0.62}$Te
• Anisotropic magnetocaloric effect in Fe${}_{3-x}$GeTe${}_2$
• Large topological Hall effect in an easy-cone ferromagnet (Cr0.9B0.1)Te
• Tuning of topological properties in the strongly correlated antiferromagnet Mn${}_3$Sn via Fe doping
• Investigation of the Anomalous and Topological Hall Effects in Layered Monoclinic Ferromagnet Cr${}_{2.76}$Te${}_4$

Cited by in corpus (1)

• In-Plane Magnetic Anisotropy and Large topological Hall Effect in Self-Intercalated Ferromagnet Cr1.61Te2