Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session Q15: Vortices and Magnetic Field Effects in Superconductors
3:00 PM–5:36 PM,
Wednesday, March 6, 2024
Room: M100F
Sponsoring
Unit:
DCMP
Chair: Avadh Saxena, Los Alamos National Laboratory
Abstract: Q15.00002 : Angular, field and temperature dependence of critial currents of superconducting nickelates thin films*
3:12 PM–3:24 PM
Presenter:
Boris A Maiorov
(National High Magnetic Field Laboratory, Los Alamos National Laboratory)
Authors:
Boris A Maiorov
(National High Magnetic Field Laboratory, Los Alamos National Laboratory)
Christopher A Mizzi
(National High Magnetic Field Laboratory, Los Alamos National Laboratory)
KM Rubi
(National High Magnetic Field Laboratory, Los Alamos National Laboratory)
Lin Er Chow
(Natl Univ of Singapore)
Ariando Ariando
(Natl Univ of Singapore)
We analyze the temperature and field dependences, identifying different regimes characterized by a collective behavior with the critical current density (Jc ) proportional to H -a, followed by a faster decrease as function of field. This is correlated with a change in the pinning nature observed as a different n vs J relation, with n defined as V α I n.
The combination of field orientation and strength give further insight on the nature of pinning regimes and dimensional changes present in the superconducting nickelate films.
*This research was partially funded by the LDRD program of Los Alamos National Laboratory. A portion of this work was performed at the National High Magnetic Field Laboratory, which is supported by National Science Foundation Cooperative Agreement No. DMR-2128556* and the State of FloridaWork at NUS is supported by the Ministry of Education (MOE), Singapore, under its Tier-2. Academic Research Fund (AcRF), Grant No. MOET2EP50121-0018.
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