Spectroscopy of snake states using a graphene Hall bar

Journal Article · Mon Dec 02 00:00:00 EST 2013 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4838557· OSTI ID:22253929

Milovanović, S. P., E-mail: [e-mail]; Ramezani Masir, M., E-mail: [e-mail]; Peeters, F. M., E-mail: [e-mail] ^[1]

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1. Departement Fysica, Universiteit Antwerpen, Groenenborgerlaan 171, B-2020 Antwerpen (Belgium)

An approach to observe snake states in a graphene Hall bar containing a pn-junction is proposed. The magnetic field dependence of the bend resistance in a ballistic graphene Hall bar structure containing a tilted pn-junction oscillates as a function of applied magnetic field. We show that each oscillation is due to a specific snake state that moves along the pn-interface. Furthermore, depending on the value of the magnetic field and applied potential, we can control the lead in which the electrons will end up and hence control the response of the system.

• OSTI ID: 22253929
• Journal Information: Applied Physics Letters, Vol. 103, Issue 23; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ELECTRIC CONTACTS
ELECTRONS
GRAPHENE
MAGNETIC FIELDS
SEMICONDUCTOR JUNCTIONS
SPECTROSCOPY