Journal article
(Letter)


Quantum oscillations and quantum Hall effect in epitaxial graphene


Publication Details
Author(s): Jobst J, Waldmann D, Speck F, Hirner R, Maude D, Seyller T, Weber HB
Publisher: American Physical Society
Publication year: 2010
Volume: 81
Journal issue: 19
ISSN: 1098-0121

Abstract

We investigate the transport properties of high-quality single-layer graphene, epitaxially grown on a 6H-SiC(0001) substrate. We have measured transport properties, in particular charge-carrier density, mobility, conductivity, and magnetoconductance of large samples as well as submicrometer-sized Hall bars which are entirely lying on atomically flat substrate terraces. The results display high mobilities, independent of sample size. The temperature dependence of the conductance indicates a rather strong coupling to the SiC substrate. An analysis of the Shubnikov-de Haas effect yields the Landau-level spectrum of single-layer graphene. When gated close to the Dirac point, the mobility increases substantially and the graphenelike quantum Hall effect occurs.



Focus Area of Individual Faculties


How to cite
APA: Jobst, J., Waldmann, D., Speck, F., Hirner, R., Maude, D., Seyller, T., & Weber, H.B. (2010). Quantum oscillations and quantum Hall effect in epitaxial graphene. Physical Review B, 81(19). https://dx.doi.org/10.1103/PhysRevB.81.195434

MLA: Jobst, Johannes, et al. "Quantum oscillations and quantum Hall effect in epitaxial graphene." Physical Review B 81.19 (2010).

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