Physics in Canada / La Physique au Canada - 2012 (68.2)

Spin Ice – a Magnetic Analogue of Common Water Ice and a Classical Spin Liquid

Michel J.P. Gingras
Department of Physics and Astronomy, University of Waterloo.

Discovered in 1997, spin ices are magnetic materials that display a low temperature state characterized by a nonzero residual magnetic entropy that is intimately related to the proton disorder entropy of common water ice – hence the name spin ice. In this article, we review the salient aspects of these fascinating systems that have sustained the interest of theorists and experimentalists alike for nearly fifteen years.