Cr2Ge2Te6 (CrGeTe3)
Cr2Ge2Te6 is a ferromagnetic semiconductor, with a Curie temperature of ~61 K and is an insulator below T <100K. The layers are stacked together via van der Waals interactions and can be exfoliated into thin 2D layers. Cr2Ge2Te6 is a trichalcogenide.
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The Cr2Ge2Te6 crystals produced at HQ Graphene have a typical lateral size of ~0.2-0.3 cm, and have a metallic appearance.
| Crystal size | ~2-3 mm |
| Electrical properties | Ferromagnetic insulator, semiconductor (Curie temperature ~61K) |
| Crystal structure | Hexagonal |
| Unit cell parameters | a = b = 0.683 nm, c = 2.056 nm, α = β = 90°, γ =120° |
| Type | Synthetic |
| Purity | >99.995 % |
| Characterized by | XRD, Raman, EDX |
| More information? | Please contact us by email or phone |
The single crystal Cr2Ge2Te6 is characterized using:
XRD: single crystal and powder X-ray diffraction (D8 Venture Bruker and D8 Advance Bruker)EDX: Energy-dispersive X-ray spectroscopy for stoichiometric analysis
Raman: 785 nm Raman system
Raman, XRD and EDX on Cr2Ge2Te6:
Click on an image to zoom
HQ Graphene Wiki on:
Cr2Ge2Te6 (CrGeTe3)
1. Gupta, V., et al. "Manipulation of the van der Waals magnet Cr2Ge2Te6 by spin-orbit torques." Nano Letters 20.10 (2020): 7482-7488.
2. Rahman, S., et al. "Giant photoluminescence enhancement and resonant charge transfer in atomically thin two-dimensional Cr2Ge2Te6/WS2 heterostructures." ACS Applied Materials & Interfaces 13.6 (2021): 7423-7433.
3. Fumega, A.O., et al. "Electronic structure and magnetic exchange interactions of Cr-based van der Waals ferromagnets. A comparative study between CrBr 3 and Cr 2 Ge 2 Te 6." Journal of Materials Chemistry C 8.39 (2020): 13582-13589.