Spin dynamics, electronic, and thermal transport properties of two-dimensional CrPS{sub 4} single crystal

Journal Article · Thu Jan 28 00:00:00 EST 2016 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4940948· OSTI ID:22494936

Pei, Q. L.; Lin, G. T.; Song, J. Y.; Hu, L.; Song, W. H.; Lu, W. J. ^[1]; Zou, Y. M.; Yu, L.; Tong, W. ^[2]

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1. Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031 (China)
2. High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031 (China)

2-Dimensional (2D) CrPS{sub 4} single crystals have been grown by the chemical vapor transport method. The crystallographic, magnetic, electronic, and thermal transport properties of the single crystals were investigated by the room-temperature X-ray diffraction, electrical resistivity ρ(T), specific heat C{sub P}(T), and the electronic spin response (ESR) measurements. CrPS{sub 4} crystals crystallize into a monoclinic structure. The electrical resistivity ρ(T) shows a semiconducting behavior with an energy gap E{sub a} = 0.166 eV. The antiferromagnetic transition temperature is about T{sub N} = 36 K. The spin flipping induced by the applied magnetic field is observed along the c axis. The magnetic phase diagram of CrPS{sub 4} single crystal has been discussed. The extracted magnetic entropy at T{sub N} is about 10.8 J/mol K, which is consistent with the theoretical value R ln(2S + 1) for S = 3/2 of the Cr{sup 3+} ion. Based on the mean-field theory, the magnetic exchange constants J{sub 1} and J{sub c} corresponding to the interactions of the intralayer and between layers are about 0.143 meV and −0.955 meV are obtained based on the fitting of the susceptibility above T{sub N}, which agree with the results obtained from the ESR measurements. With the help of the strain for tuning the magnetic properties, monolayer CrPS{sub 4} may be a promising candidate to explore 2D magnetic semiconductors.

• OSTI ID: 22494936
• Journal Information: Journal of Applied Physics, Vol. 119, Issue 4; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANTIFERROMAGNETISM
CHROMIUM IONS
ELECTRIC CONDUCTIVITY
ELECTRON SPIN RESONANCE
ENERGY GAP
ENTROPY
MAGNETIC FIELDS
MAGNETIC PROPERTIES
MAGNETIC SEMICONDUCTORS
MEAN-FIELD THEORY
MONOCLINIC LATTICES
MONOCRYSTALS
PHASE DIAGRAMS
SPECIFIC HEAT
SPIN
TEMPERATURE RANGE 0273-0400 K
TRANSITION TEMPERATURE
TWO-DIMENSIONAL SYSTEMS
X-RAY DIFFRACTION