Ewing theory of ferromagnetism

Ewing theory of ferromagnetism

[′yü·iŋ ‚thē·ə·rē əv ‚fe·rō′mag·nə‚tiz·əm]
(solid-state physics)
Theory of ferromagnetic phenomena which assumes each atom is a permanent magnet which can turn freely about its center under the influence of applied fields and other magnets.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.