Please use this identifier to cite or link to this item: https://doi.org/10.1038/ncomms9337
Title: Extremely large magnetoresistance in few-layer graphene/boron-nitride heterostructures
Authors: Gopinadhan, K 
Shin, Y.J 
Jalil, R
Venkatesan, T 
Geim, A.K
Neto, A.H.C 
Yang, H 
Keywords: boron
graphene
nitrite
boron
carbon
electrical resistivity
magnetic field
mobility
nitrogen compound
two-dimensional modeling
Article
chemical structure
electric field
electric potential
electric resistance
magnetic field
Raman spectrometry
surface property
temperature measurement
Issue Date: 2015
Publisher: Nature Publishing Group
Citation: Gopinadhan, K, Shin, Y.J, Jalil, R, Venkatesan, T, Geim, A.K, Neto, A.H.C, Yang, H (2015). Extremely large magnetoresistance in few-layer graphene/boron-nitride heterostructures. Nature Communications 6 : 8337. ScholarBank@NUS Repository. https://doi.org/10.1038/ncomms9337
Abstract: Understanding magnetoresistance, the change in electrical resistance under an external magnetic field, at the atomic level is of great interest both fundamentally and technologically. Graphene and other two-dimensional layered materials provide an unprecedented opportunity to explore magnetoresistance at its nascent stage of structural formation. Here we report an extremely large local magnetoresistance of ?2,000% at 400 K and a non-local magnetoresistance of >90,000% in an applied magnetic field of 9 T at 300 K in few-layer graphene/boron-nitride heterostructures. The local magnetoresistance is understood to arise from large differential transport parameters, such as the carrier mobility, across various layers of few-layer graphene upon a normal magnetic field, whereas the non-local magnetoresistance is due to the magnetic field induced Ettingshausen-Nernst effect. Non-local magnetoresistance suggests the possibility of a graphene-based gate tunable thermal switch. In addition, our results demonstrate that graphene heterostructures may be promising for magnetic field sensing applications. © 2015 Macmillan Publishers Limited. All rights reserved.
Source Title: Nature Communications
URI: https://scholarbank.nus.edu.sg/handle/10635/175484
ISSN: 20411723
DOI: 10.1038/ncomms9337
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