Publication Type : Journal Article
Publisher : Physical Review B
Source : Physical Review B, vol. 92, p. 125410, 2015
Campus : Amritapuri
School : School of Arts and Sciences
Department : Physics
Year : 2015
Abstract : We have observed the quantum Hall effect (QHE) and Shubnikov–de Haas (SdH) oscillations in highly disordered graphene at magnetic fields up to 65 T. Disorder was introduced by hydrogenation of graphene up to a ratio H/C ≈0.1%. The analysis of SdH oscillations and QHE indicates that the topological part of the Berry phase, proportional to the pseudospin winding number, is robust against introduction of disorder by hydrogenation in large-scale graphene.
Cite this Research Publication : Keyan Bennaceur, Guillemette, J., Lévesque, P. L., Cottenye, N., Mahvash, F., Hemsworth, N., Kumar, A., Murata, Y., Heun, S., Goerbig, M. O., Proust, C., Siaj, M., Martel, R., Gervais, G., and Szkopek, T., “Measurement of topological Berry phase in highly disordered graphene”, Physical Review B, vol. 92, p. 125410, 2015