C. Paulsen

collaborators

2 papers

cond-mat.str-el2025

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…

cond-mat.str-el2024

Power spectrum of magnetic relaxation in spin ice: anomalous diffusion in a Coulomb fluid

D. Billington, E. Riordan, C. Cafolla-Ward +7

Magnetization noise measurements on the spin ice Dy $_{2}$ Ti $_{2}$ O $_{7}$ have revealed a remarkable `pink noise' power spectrum $S (f, T)$ below 4 K, including evidence of magnetic m…