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Evidence item

Current pulses switched UTe2 between persistent high- and low-critical-current states, and gradual ramp annealing restored equilibrium. MEASUREMENT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 17212

Source: Electrically controllable superconducting memory effect in UTe2 · locator {} · excerpt hash sha256:f2fec63ddb2edfd2660dd59ed53580c6aa700806b1553de5b5fd560ba4b2c332

Exact excerpt
On applying a magnetic field to access an intermediate regime straddling two distinct superconducting phases, we find that direct current pulses can push the material in and out of a metastable state that has an enhanced critical current density Jc. This switching is controllable by the strength and duration of the stimuli, with the system ‘remembering’ whether it is in the high or low Jc state for extended periods. ... The equilibrium vortex lattice is reattained by annealing the system with a gradual current ramp, returning it to the original state.

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