Published 2023-09-01
“…Here, we demonstrate the direct real-space observation of ergodicity transitions in a vertex-frustrated artificial
spin ice. Using synchrotron-based photoemission electron microscopy we record thermally-driven moment fluctuations as a function of temperature, allowing us to directly observe transitions between ergodicity-breaking dynamics to system freezing, standing in contrast to simple trends observed for the temperature-dependent vertex populations, all while the entropy features arise as a function of temperature. …”
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