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The Cr2Ge2Te6 (CGT) compound is an intrinsic ferromagnetic material with avan der Waals layered structure that shows great promise in spintronicsapplications. In this work, we investigated the edge effect in the formation ofCGT nanoribbons with different terminations as well as the change in electronicand magnetic properties considering spin-orbit effects on the calculations. Westudied the thermodynamic stability of the nanoribbon employing the surfaceformation energy formalism. According to the calculations, in regions ofGe-rich, Te-rich, and Ge-poor, Te-poor of chemical potential the nanoribbonwith TeCr edges is the most stable structure, while in the regions of Ge-rich,Te-poor and Ge-poor, Te-poor the nanoribbon with TeCr edges and Te vacancies isthe most stable structure. Furthermore, calculations show that the nanoribbonis ferromagnetic with half metal characteristics.

Perpendicular magnetic anisotropy and half metallicity in Cr2Ge2Te6 nanoribbons