Work

Competition between magnetic field dependent band structure and coherent backscattering in multiwall carbon nanotubes

Year: 2007

Type: article

Abstract: Magnetotransport measurements in large diameter multiwall carbon nanotubes (20–40 nm) demonstrate the competition of a magnetic-field dependent bandstructure and Altshuler–Aronov–Spivak oscillations. By means of an efficient capacitive coupling to a backgate electrode, the magnetoconductance oscillations are explored as a function of Fermi level shift. Changing the magnetic field orientation with respect to the tube axis and by ensemble averaging, allows the contributions of different Aharonov–Bohm phases to be identified. The results are in qualitative agreement with numerical calculations of the band structure and the conductance.

Source: New Journal of Physics

DOI: 10.1088/1367-2630/9/3/056

Authors: B Stojetz, S Roche, C Miko, F Triozon, L Forró, C Strunk

Institutions: University of Regensburg, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, CEA Grenoble, École Polytechnique Fédérale de Lausanne

Language: English

Topic: Quantum and electron transport phenomena

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,610

Funders: National Science Foundation, Deutsche Forschungsgemeinschaft, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung