期刊
JOURNAL OF PHYSICS D-APPLIED PHYSICS
卷 55, 期 48, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1361-6463/ac941b
关键词
Te vacancies; perpendicular magnetic anisotropy; edge effect; half-metal effect; spintronics; magnetic tunnel junctions
资金
- DGAPA-UNAM [IA100822, IN110820, IG200320]
- DGCTIC-UNAM Supercomputing Center [LANCAD-UNAM-DGTIC-150, LANCADUNAMDGTIC-368]
- THUBAT-KAAL IPICYT supercomputing center Project [TKII-JGSA001]
This work investigates the edge effects and spin-orbit effects on the magnetic properties of Cr2Ge2Te6 nanoribbons, and highlights their potential in spintronic device construction.
Cr2Ge2Te6 is an intrinsic ferromagnetic material with a van der Waals layered structure and it shows promise in spintronics applications. In this work, we investigated the edge effects in Cr2Ge2Te6 nanoribbons and the change in magnetic properties considering spin-orbit effects. Edge formation energies evidenced stability in nanoribbons with TeCr edges. Stability remains in these nanoribbons in presence of Te vacancies at the edge. New bonds appear in the nanoribbons due to edge effects and induce half-metal (HM) behavior. The metallic part is dominated by Te-p, Ge-p, and Cr-d orbitals. Both stable nanoribbons present perpendicular magnetic anisotropy. Our results point Cr2Ge2Te6 nanoribbons as key for the construction of spintronic devices since HM materials with perpendicular magnetic anisotropy produce 100% spin-polarized out-of-plane current.
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