Integrating magnetic Co-nanopillars in a NbN-based VAN thin film as a multifunctional hybrid metamaterial
NbN thin films are considered as a promising alternative candidate to conventional Al superconducting electrodes for Josephson junction devices, superconducting qubits and quantum logic circuits. Herein, by co-growing ferromagnetic Co with superconducting NbN, self-assembled NbN-Co vertically aligned nanocomposite (VAN) thin films have been successfully deposited on a MgO substrates, with NbN in its cubic superconducting phase. The obtained VAN metamaterials exhibit epitaxial growth of NbN with uniformly dispersed Co nanoplates. Further physical property characterization reveals that the NbN-Co VAN presents ferromagnet properties with strong out-of-plane magnetic anisotropy and optical anisotropy. This hybrid metamaterial system could find future applications in superconducting spintronic devices and quantum computing devices.
Authors
- Shiyu Zhou (ORCID: https://orcid.org/0000-0001-7937-4379)
- Benson Kunhung Tsai
- Xinghang Zhang (ORCID: https://orcid.org/0000-0002-8380-8667)
- Ping Lu (ORCID: https://orcid.org/0000-0002-9369-7462)
- Yizhi Zhang (ORCID: https://orcid.org/0000-0002-0422-0006)
- Zedong Hu (ORCID: https://orcid.org/0000-0001-8069-0205)
- Andrew Neal (ORCID: https://orcid.org/0000-0001-9251-5471)
- Jianan Shen (ORCID: https://orcid.org/0000-0003-3226-2761)
- Lizabeth Quigley (ORCID: https://orcid.org/0000-0002-8691-8992)
- Claire A. Mihalko (ORCID: https://orcid.org/0009-0002-1876-006X)
- Haiyan Wang (ORCID: https://orcid.org/0000-0002-7397-1209)
- Wei Pan (ORCID: https://orcid.org/0000-0003-4518-2082)
- D. McK. Paul
Institutions
- Purdue University West Lafayette (US)
- Sandia National Laboratories (US)
Publication Details
- Journal
- Materials Horizons
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d4mh01281j
- Citations
- 1
- Primary Topic
- Metal and Thin Film Mechanics
- Type
- article
- Field-Weighted Citation Impact
- 0.86
Funders
- National Science Foundation
- U.S. Department of Energy
- Center for Integrated Nanotechnologies
- National Nuclear Security Administration
- Division of Materials Research
- Sandia National Laboratories