Transient increase of Tc and Jc in superconducting/metallic heterostructures

Ionescu, A.; Bihler, M.; Simmendinger, Julian; Miksch, Cornelia; Fischer, Peer; Cristiani, G.; Rabinovich, K. S.; Schütz, Gisela; Albrecht, J.

doi:10.1016/j.matchemphys.2021.124390

Cited by 2 publications

(1 citation statement)

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“…The suppression of current transport in the YBCO film by the STO layer proves that the direct contact of both films after oxygenation has beneficial consequences for J c and U *. The post-oxygenation has recovered the oxygen stoichiometry of YBCO close to the interface by oxygen diffusion through the STO at least partially [ 59 ]. The superconducting phase is in direct contact with the ferromagnetically ordered CRO.…”

Section: Resultsmentioning

confidence: 99%

Ferromagnetism and Superconductivity in CaRuO3/YBa2Cu3O7-δ Heterostructures

et al. 2022

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The deposition of a ferromagnetic layer can affect the properties of high-temperature superconductors underneath. We investigated the influence of ferromagnetic CaRuO3 on the properties of YBa2Cu3O7-x (YBCO) superconducting thin films when the layers are either in direct contact or separated by a barrier layer of 5 nm SrTiO3. Detailed measurements of the magnetic moment of the superconductor and ferromagnet as a function of temperature and magnetic field have been performed using SQUID magnetometry. Magnetometry and relaxation measurements show that the modification of the superconducting properties of YBCO strongly depends on the interaction with the ferromagnetic layer on top. The barrier layer has a significant impact on both the supercon-ducting properties of the YBCO film and the ferromagnetic ordering of CaRuO3. The physical properties mentioned above were discussed in correlation with the materials’ structure determined by XRD analysis.

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Section: Resultsmentioning

confidence: 99%