期刊
PHYSICAL REVIEW LETTERS
卷 114, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.114.016603
关键词
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资金
- DOE BES Award [DE-FG02-07ER46351]
- NSF/ECCS Award [1202559]
- NSF/NEB Award [1124601]
- NSF/DMR Award [0748952]
- CONSEPT Center at UCR
- U.S. Department of Energy (DOE) [DE-FG02-07ER46351] Funding Source: U.S. Department of Energy (DOE)
- Direct For Mathematical & Physical Scien [1124601] Funding Source: National Science Foundation
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [1202559] Funding Source: National Science Foundation
- Division Of Materials Research [1124601] Funding Source: National Science Foundation
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 similar to 0.09(2e(2)/h) at low temperatures and is measurable up to similar 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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