Journal
APPLIED PHYSICS LETTERS
Volume 118, Issue 24, Pages -Publisher
AIP Publishing
DOI: 10.1063/5.0055413
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Funding
- NSF [DMR-1707785]
- National High Magnetic Field Laboratory through the NSF Cooperative Agreement [DMR-1644779, 5206]
- State of Florida
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The dynamics of charge-order domains in a stripe-ordered cuprate were investigated using pulsed current injection, revealing access to nonthermally induced resistive metastable states. Fluctuations of charge order were found to be most pronounced at the onset temperature. This study establishes pulsed current injection as a viable method for probing charge-order dynamics in various materials.
The dynamics of the charge-order domains has been investigated in La1.48Nd0.4Sr0.12CuO4, a prototypical stripe-ordered cuprate, using pulsed current injection. We first identify the regime in which nonthermal effects dominate over simple Joule heating and then demonstrate that, for small enough perturbation, pulsed current injection allows access to nonthermally induced resistive metastable states. The results are consistent with the pinning of the fluctuating charge order, with fluctuations being most pronounced at the charge-order onset temperature. The nonequilibrium effects are revealed only when the transition is approached from the charge-ordered phase. Our experiment establishes pulsed current injection as a viable and effective method for probing the charge-order dynamics in various other materials.
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