A spin glass is a material exhibiting high magnetic frustration. Its magnetic structure is disordered even at low temperatures.

The origin of the behavior can be either a disordered structure (such as that of a conventional, chemical glass) or a disordered mangetic doping in an otherwise regular structure.

See also:

• ferromagnetism
• antiferromagnetism
• phase, phase transition
• ferromagnetic interaction
• antiferromagnetic interaction
• crystal structure