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ERIC Number: EJ873691
Record Type: Journal
Publication Date: 2010-Mar
Pages: 10
Abstractor: As Provided
Reference Count: 20
ISBN: N/A
ISSN: ISSN-0143-0807
Discovering the Puzzling Behaviour of Electrons with the Grimaldi-Young Experiment
Matteucci, Giorgio; Castaneda, Roman; Serna, Samuel; Medina, Francisco; Garcia-Sucerquia, Jorge
European Journal of Physics, v31 n2 p347-356 Mar 2010
An experiment analogous to that devised by Grimaldi and subsequently repeated by Young to study the nature of light has been realized with electrons. Following the Grimaldi and Young line of thought, an original approach is presented to introduce undergraduate physics students to the wave behaviour of electrons. An electron microscope equipped with a low coherent source of electrons and a thin platinum wire, acting as an opaque obstacle, is used to reproduce the experimental conditions adopted by Grimaldi and Young with light. Electron interference fringes produced in the geometrical shadow of the obstacle are interpreted by assuming that electrons behave like a sound or a light wave. This hypothesis is confirmed by the modelling of the experimental electron interference patterns. (Contains 5 figures and 1 footnote.)
Institute of Physics Publishing. The Public Ledger Building Suite 929, 150 South Independence Mall West, Philadelphia, PA 19106. Tel: 215-627-0880; Fax: 215-627-0879; e-mail: info@ioppubusa.com; Web site: http://www.iop.org/EJ/journal/EJP
Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A