Magnetic anisotropy of the single-crystalline ferromagnetic insulator Cr2Ge2Te6

Abstract

Cr2Ge2Te6 (CGT), a layered ferromagnetic insulator, has attracted a great deal of interest recently owing to its potential for integration with Dirac materials to realize the quantum anomalous Hall effect (QAHE) and to develop novel spintronics devices. Here, we study the uniaxial magnetic anisotropy energy of single-crystalline CGT and determine that the magnetic easy axis is directed along the c-axis in its ferromagnetic phase. In addition, CGT is an insulator below the Curie temperature. These properties make CGT a potentially promising candidate substrate for integration with topological insulators for the realization of the high-temperature QAHE.

arXiv comment12 pages, 4 figures

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• Synthesis, Engineering, and Theory of 2D van der Waals Magnets
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• Critical behavior of quasi-two-dimensional weak itinerant ferromagnet trigonal chromium telluride Cr${}_{0.62}$Te
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• Magnetic Anisotropy and Low Field Magnetic Phase Diagram of Quasi Two-Dimensional Ferromagnet Cr${}_2$Ge${}_2$Te${}_6$
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• Pressure control of the magnetic anisotropy of the quasi-two-dimensional van der Waals ferromagnet Cr${}_2$Ge${}_2$Te${}_6$
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• Magnetic anisotropy of the van der Waals ferromagnet Cr${}_2$Ge${}_2$Te${}_6$ studied by angular-dependent XMCD
• Visualizing thickness-dependent magnetic textures in few-layer ${\text{Cr}}_2{\text{Ge}}_2{\text{Te}}_6$
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• Short-range Crystalline Order-Tuned Conductivity in Cr${}_2$Si${}_2$Te${}_6$ van der Waals Magnetic Crystals
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• Ferromagnetic Cr4PtGa17: A Novel Half-Heusler-Type Compound with a Breathing Pyrochlore Lattice
• Berezinskii-Kosterlitz-Thouless transitions in a topological superconductor-ferromagnet-superconductor junction
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