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Title: Probing Ferromagnetism in van der Waals Iron Germanium Telluride
The developing material class of van der Waals (vdW) magnets has attracted great interest due to their novel properties such as gate and strain tunable magnetism. Magnetism at the atomic limit remains difficult to explore however due to the air instability of most vdW ferromagnets. In this work, we demonstrate that pre-fabricated Hall bar electrodes can be used to probe magnetism in Fe3GeTe2 (FGT) flakes via the anomalous Hall effect. Utilizing this device structure, we systematically investigated the magnetic properties of FGT. Clear ferromagnetic hysteresis windows were clearly observed at temperatures up to 200 K. These vdW Hall bar structures provides a highly efficient and damage-free strategy for metal integration, which could be used in many other 2D magnetic materials.  more » « less
Award ID(s):
1653241
PAR ID:
10328634
Author(s) / Creator(s):
Date Published:
Journal Name:
52th IEEE Semiconductor Interface Specialists Conference
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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