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

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 amore » promising candidate to explore 2D magnetic semiconductors.« less
Authors:
; ; ; ; ; ;  [1] ; ; ;  [2] ;  [2] ;  [3] ;  [3]
  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)
  3. (China)
Publication Date:
OSTI Identifier:
22494936
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 119; Journal Issue: 4; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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