Magnetism and Magnetic Measurement, Introduction
Magnetism and Magnetic Measurement
Published Online: 12 OCT 2012
Copyright © 2003 by John Wiley & Sons, Inc. All rights reserved.
Characterization of Materials
How to Cite
Chien, C. L. 2012. Magnetism and Magnetic Measurement, Introduction. Characterization of Materials. 1–5.
- Published Online: 12 OCT 2012
Magnetism and magnetic materials have a long and illustrious history from antiquity to the present. Devices and technologies based on magnetism, from loadstone in the ancient, to the spin-valve GMR read-heads in our computers now, to the new memories (e.g., STT-MRAM) in the future, may be the longest running technology in human endeavor. A fundamental understanding of magnetism requires quantum mechanics and special relativity that have been advanced in the 20th century. In this Chapter, we describe the origin of the atomic magnetic moments, their mutual interaction that leads to magnetism, the generation of magnetic field, and the exploitation of magnetic materials for technological applications.
- magnetic measurements;