Physical properties of the van der Waals material Fe<sub>5</sub>GeTe<sub>2</sub>
ORAL
Abstract
van der Waals bonded materials that possess magnetic order at high temperatures are of great interest for integrating magnetic effects into engineered heterostructures. Of the cleavable materials studied so far, Fe5-xGeTe2 possesses the highest reported Curie temperature TC in the bulk and maintains a high TC in exfoliated flakes. This presentation will discuss the physical properties of Fe5-xGeTe2 single crystals, with an emphasis on the metastable nature of the compound and how magnetism on one Fe sublattice dominates the transport properties. The ability to tune the magnetism through cobalt doping will also be briefly discussed.
*This research was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division
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Presenters
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Andrew May
- Materials Science and Technology Division, Oak Ridge National Laboratory
- Materials Science & Technology Division, Oak Ridge National Laboratory
- Oak Ridge National Laboratory
- Oak Ridge National Lab