Satisfaction and Violation of the Fluctuation-Dissipation Relation in spin ice materials

F. Morineau, V. Cathelin, P. C. W. Holdsworth +5

We test the fluctuation-dissipation relation (FDR) in spin ice materials Dy${}_2$Ti${}_2$O${}_7$ and Ho${}_2$Ti${}_2$O${}_7$ by measuring both the magnetic noise and the out-of-phase part of t…