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Magnetic Moment and Magnetization

Magnetism and Magnetic Measurement

  1. Michael E. McHenry,
  2. David E. Laughlin

Published Online: 18 MAY 2012

DOI: 10.1002/0471266965.com042.pub2

Characterization of Materials

Characterization of Materials

How to Cite

McHenry, M. E. and Laughlin, D. E. 2012. Magnetic Moment and Magnetization. Characterization of Materials. 1–25.

Author Information

  1. Carnegie Mellon University, Pittsburgh, PA, USA

Publication History

  1. Published Online: 18 MAY 2012

Abstract

This article explores theories describing magnetic dipole moments and magnetization, including the origin and coupling of magnetic dipole moments and their addition to yield a magnetization. In particular, we define field quantities and magnetic dipole moments. This is followed by discussion of the atomic origins of dipole moments, magnetization and dipolar interactions, and magnetization in superconductors. The coupling of magnetic dipole moments is discussed in the context of mean field and exchange theories. This allows for the definition of ferromagnetism, antiferromagnetism, and ferrimagnetism. The microscopic magnetization and domains are finally discussed.

Keywords:

  • magnetic dipole moments;
  • magnetization;
  • mean field theory;
  • exchange interactions;
  • magnetic domains