The Route to Supercurrent Transparent Ferromagnetic Barriers in Superconducting Matrix
- A ferromagnetic barrier thinner than the coherence length in high-temperature superconductors is realized in the multilayers of YBa2Cu3O7-δ and La0.67Ca0.33MnO3. We used epitaxial growth of YBCO on ⟨110⟩ SrTiO3 substrates by pulsed laser deposition to prepare thin superconducting films with copper oxide planes oriented at an angle to the substrate surface. Subsequent deposition of LCMO and finally a second YBCO layer produces a superconductor/ferromagnet/superconductor trilayer containing an ultrathin ferromagnetic barrier with sophisticated geometry at which the long axis of coherence length ovoid of YBCO is pointing across the LCMO ferromagnetic layer. A detailed characterization of this structure is achieved using high-resolution electron microscopy.
Author: | Yurii Ivanov, Soltan Soltan, Joachim AlbrechtORCiD, Eberhard Goering, Gisela Schütz, Zaoli Zhang, Andrey Chuvilin |
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Institutional Author: | Joachim Albrecht |
DOI: | https://doi.org/10.1021/acsnano.9b00888 |
ISSN: | 1936-0851 |
eISSN: | 1936-086X |
Source Title (English): | ACS nano |
Document Type: | Article |
Language: | English |
Year of Completion: | 2019 |
Release Date: | 2021/05/11 |
Volume: | 13 |
First Page: | 5655 |
Last Page: | 5661 |
Faculty: | Maschinenbau und Werkstofftechnik |
Relevance: | peer reviewed |