A proper understanding of the Davisson and Germer experiments for undergraduate modern physics course
Physics Education
2013-07-24 v1
Abstract
The physical interpretation for the Davisson-Germer experiments on nickel (Ni) single crystals [(111), (100), and (110) surfaces] is presented in terms of two-dimensional (2D) Bragg scattering. The Ni surface acts as a reflective diffraction grating when the incident electron beams hits the surface. The 2D Bragg reflection occurs when the Ewald sphere intersects the Bragg rods arising from the two-dimension character of the system. Such a concept is essential to proper understanding of the Davisson-Germer experiment for undergraduate modern physics course.
Keywords
Cite
@article{arxiv.1307.6049,
title = {A proper understanding of the Davisson and Germer experiments for undergraduate modern physics course},
author = {Masatsugu Suzuki and Itsuko S. Suzuki},
journal= {arXiv preprint arXiv:1307.6049},
year = {2013}
}
Comments
8 pages and 14 figures