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Ferromagnetic Materials

How many ferromagnets do you think you own? Maybe many more than you realise. Ferromagnetic materials lie at the heart not just of the humble compass, but also of many loudspeakers and of computer memory. This teaching and learning package outlines the microscopic basis of magnetism and some of the conquences of ferromagnetic order in real materials.

Schematic of a single domain behaving as a block magnet

Aims
Before you start
Introduction
Types of magnetism
Why are some materials magnetic?
Why are only some materials ferromagnetic?
Curie-Weiss law
Domains
Domain walls
Hysteresis
Anisotropy
Summary
Questions
Going further

Begin

Schematic of a single domain behaving as a block magnet

First created: September 2006. Last updated: January 2008. Converted to HTML5: April 2021.