Magnetoresistance of monolayer graphene with short-range scattering

Magnetoresistance of monolayer graphene with short-range scattering

We present magnetotransport measurements at classical magnetic fields for three graphene monolayers with various levels of disorder. A square root magnetoresistance (SRMR) behavior is observed in one sample which has the characteristic sub-linear conductivity signaling on the presence of short-range...

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Bibliographic Details
Main Authors: Vasileva, G. Yu, Alekseev, P. S, Vasilyev, Yu. B, Ivanov, Yu. L, Smirnov, D, Schmidt, H, Haug, R. J
Format: Journal Article
Language:English
Published: 17-08-2015
Subjects:
Physics - Mesoscale and Nanoscale Physics
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Summary:We present magnetotransport measurements at classical magnetic fields for three graphene monolayers with various levels of disorder. A square root magnetoresistance (SRMR) behavior is observed in one sample which has the characteristic sub-linear conductivity signaling on the presence of short-range disorder in this sample. No square root MR was observed in other samples where short-range scattering is inessential as it is evident from the gate voltage dependences of their conductivities. Comparing our experimental data for the sample with theoretical calculations we found a good qualitative agreement and established the conditions which should be fulfilled in graphene to observe the SRMR experimentally.
DOI:10.48550/arxiv.1508.04009