Anomalous Hall effect in two-dimensional non-collinear antiferromagnetic semiconductor Cr0.68Se

Abstract

Cr0.68Se single crystals with two-dimensional (2D) character have been grown, and the detailed magnetization M(T), electrical transport properties (including longitudinal resistivity and Hall resistivity and thermal transport ones (including heat capacity Cp(T) and thermoelectric power (TEP) S(T)) have been measured. There are some interesting phenomena: (i) Cr0.68Se presents a non-collinear antiferromagnetic (AFM) semiconducting behavior with the Neel temperature TN = 42 K and the activated energy Eg=3.9 meV; (ii) It exhibits the anomalous Hall effect (AHE) below TN and large negative magnetoresistance (MR) about 83.7% (2 K, 8.5 T). The AHE coefficient RS is 0.385 cm-3/C at T=2 K and the AHE conductivity σH is about 1 ohm-1cm-1 at T=40 K, respectively; (iii) The scaling behavior between the anomalous Hall resistivity and the longitudinal resistivity is linear and further analysis implies that the origin of the AHE in Cr0.68Se is dominated by the skew-scattering mechanism. Our results may be helpful for exploring the potential application of these kind of 2D AFM semiconductors.

arXiv commentAccepted by Appl.Phys.Lett

References in corpus (18)

• The electronic properties of graphene
• Anomalous Hall effect
• Antiferromagnetic spintronics
• Anomalous Hall effect arising from noncollinear antiferromagnetism
• Gate-tunable Phase Transitions in 1T-TaS${}_2$
• Room-temperature antiferromagnetic memory resistor
• Giant Anomalous Hall Effect in the Chiral Antiferromagnet Mn3Ge
• Orbital ferromagnetism and anomalous Hall effect in antiferromagnets on distorted fcc lattice
• Spin-orbit coupling induced anisotropy effects in bimetallic antiferromagnets: A route towards antiferromagnetic spintronics
• Large Anomalous Hall effect in a silicon-based magnetic semiconductor
• Room-temperature multiferroic hexagonal LuFeO${}_3$ films
• Anomalous Hall effect of ferromagnetic Fe3Sn2 single crystal with geometrically frustrated kagome lattice
• Strain-controlled switch between ferromagnetism and antiferromagnetism in 1T-CrX2 (X = Se, Te) monolayers
• The anomalous Hall Effect and magnetoresistance in the layered ferromagnet Fe_{1/4}TaS_2: the inelastic regime
• Magnetic phase evolution in the spinel compounds Zn${}_{1-x}$Co${}_x$Cr${}_2$O${}_4$
• Anomalous Hall effect in the noncollinear antiferromagnet Mn5Si3
• Theory of magnetic switching of ferroelectricity in spiral magnets
• Antiferromagnetic ground state in NpCoGe

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