The Hall effect in spin glasses

Publisher Website
Google Scholar
Abstract
Although the coupling betweenthe magnetic moments in the ideal spin‐glass state is made via the itinerant electrons, it has been difficult to see conspicuous evidence of the state in properties that depend on the electrons’ motion. However, the temperature dependence of the anomalous part of the Hall effect, which arises from the spin‐orbit coupling of the itinerant electrons with the local moments, is a transport property that in favourable alloys can show clearly the spin‐glass transition. The conditions for the appearance of this anomalous component are presented. Features detected as the magnetic arrangement in a spin glass is altered suggest that independent spins and those coupled by direct exchange to at least one other spin are responsible for the behavior.