AI Article Synopsis
- The study shows the anomalous Hall effect (AHE) occurring in single-layer graphene when it's coupled with a yttrium iron garnet (YIG) ferromagnetic film.
- The AHE exhibits a notable conductance of about 0.09(2e(2)/h) at low temperatures, and it remains measurable up to around 300 K.
- The findings suggest that this setup not only causes ferromagnetism in graphene but also enhances its spin-orbit coupling, paving the way for new spintronic applications based on these transport phenomena.
Article 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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| http://dx.doi.org/10.1103/PhysRevLett.114.016603 | DOI Listing |
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