Open AccessSpin and Orbital Hall Effect: Semiclassical Approach
Author(s) -
Minkyu Park,
Sung-Hyon Sonny H. Rhim
Publication year - 2020
Publication title -
mulrihag gwa cheomdan gisul
Language(s) - English
Resource type - Journals
ISSN - 1225-2336
DOI - 10.3938/phit.29.033
Subject(s) - semiclassical physics , physics , spintronics , spin hall effect , spin (aerodynamics) , electron , spin engineering , angular momentum , orbital motion , condensed matter physics , quantum mechanics , quantum electrodynamics , spin polarization , ferromagnetism , quantum , thermodynamics
Spintronics is a research field that utilizes the electronic-spin degree of freedom beyond electronics that uses the charge of electrons. Recently, an attempt was made to extend this to include the orbital angular momentum of electrons, and that is called orbitronics or spin-orbitronics. In this article, we review the semiclassical dynamics of a wave packet that describes electrons in solids under slowly varying electromagnetic fields. This will be used to explain the spin or orbital Hall effect, which is a fundamental phenomenon in spin-orbitronics. The presentation given here is simplified and its goal is to provide a warm-up for articles in this issue of Physics and High Technology.