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Research Highlight | Materials Science Division

Unconventional slowing down of electronic recovery

In a study published in Nature Communications, researchers report investigation show slowing down of electronic recovery corresponds to pseudo-critical dynamics that originate from magnetic interactions close to a weakly first-order phase transition.

Scientific Achievement

We discovered a dramatic slowing down of electronic recovery in the charge ordered state of a correlated oxide La1/3Sr2/3FeO3 near its critical temperature.

Significance and Impact

Transient electronic processes are important for switching  between different states and typically happen in < 10-12 s.  Slower dynamics ~ 10-6 s near critical points may offer a route to stabilizing exotic transient electronic phases over longer periods for energy-related applications.

Research Details

  • Time-resolved optical and x-ray experiments were used to characterize the dynamics of charge ordered states. Samples were synthesized using oxide-MBE.
  • Evidence points to electronic spinodal decomposition as the underlying mechanism for critical slowing down.

DOI10.1038/s41467-018-04199-4

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This research used resources of the Advanced Photon Source, a U.S. DOE Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357.

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