Extremely slow nonequilibrium monopole dynamics in classical spin ice

  title={Extremely slow nonequilibrium monopole dynamics in classical spin ice},
  author={T. St{\"o}ter and Mathias Doerr and Sergey Granovsky and Martin Rotter and Sebastian T. B. Goennenwein and Sergei Zherlitsyn and O. A. Petrenko and Geetha Balakrishnan and H. D. Zhou and Joachim Wosnitza},
  journal={Physical Review B},
We report on the non-equilibrium monopole dynamics in the classical spin ice Dy$_2$Ti$_2$O$_7$ detected by means of high-resolution magnetostriction measurements. Significant lattice changes occur at the transition from the kagome-ice to the saturated-ice phase, visible in the longitudinal and transverse magnetostriction. A hysteresis opening at temperatures below 0.6 K suggests a first-order transition between the kagome and saturated state. Extremely slow lattice relaxations, triggered by… 
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