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Updated: Apr 18, 2026

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials
Published on: January 21, 2016
Proximity-induced ferromagnetism in graphene revealed by the anomalous Hall effect
Zhiyong Wang1, Chi Tang1, Raymond Sachs1
1Department of Physics and Astronomy, University of California, Riverside, California 92521, USA.
Abstract:
We demonstrate the anomalous Hall effect (AHE) in single-layer graphene exchange coupled to an atomically flat yttrium iron garnet (YIG) ferromagnetic thin film. The anomalous Hall conductance has magnitude of ∼0.09(2e(2)/h) at low temperatures and is measurable up to ∼300 K. Our observations indicate not only proximity-induced ferromagnetism in graphene/YIG with a large exchange interaction, but also enhanced spin-orbit coupling that is believed to be inherently weak in ideal graphene. The proximity-induced ferromagnetic order in graphene can lead to novel transport phenomena such as the quantized AHE which are potentially useful for spintronics.
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