Journal
JOURNAL OF APPLIED PHYSICS
Volume 114, Issue 11, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4822092
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Funding
- NSF [DMR-0819860]
- SPAWAR [N66001-11-1-4110]
- Ontario Research Fund
- Natural Sciences and Engineering Research council of Canada
- Canada Foundation for Innovation
- Prins Bernhard Cultuurfonds
- U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-AC02-07CH11358]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [0846341] Funding Source: National Science Foundation
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Cr2Ge2Te6 is proposed as an insulating ferromagnetic substrate for the growth of tetradymite-type topological insulators, based on a refined characterization of its transport, magnetic, optical, and calculated electronic properties. It is found to be a soft ferromagnet with no visible magnetic domains over relatively large length scales and to be highly insulating with an indirect band gap and low carrier concentration. Further we present the fabrication of Bi2Te3-Cr2Ge2Te6 heterostructure samples by chemical vapor deposition and show that crystals of the two phases are oriented such that the hexagonal Te planes are aligned at their interfaces. (C) 2013 AIP Publishing LLC.
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