Steering and collimating ballistic electrons with amphoteric refraction

Journal Article · Sun Jul 15 00:00:00 EDT 2012 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4739712· OSTI ID:22089348

Radu, A.; Dragoman, D.; Iftimie, S. ^[1]

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1. Physics Department, University of Bucharest, P.O. Box MG-11, 077125 Bucharest (Romania)

We show that amphoteric refraction of ballistic electrons, i.e., positive or negative refraction depending on the incidence angle, occurs at an interface between an isotropic and an anisotropic medium and can be employed to steer and collimate electron beams. The steering angle is determined by the materials' parameters, but the degree of collimation can be tuned in a significant range by changing the energy of ballistic electrons.

• OSTI ID: 22089348
• Journal Information: Journal of Applied Physics, Vol. 112, Issue 2; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ELECTRON BEAMS
INCIDENCE ANGLE
INTERFACES
REFRACTION