Magnetic field-controlled 0−π transitions and their experimental signatures in superconductor-ferromagnet-superconductor junctions
Vargunin, A., & Silaev, M. A. (2020). Magnetic field-controlled 0−π transitions and their experimental signatures in superconductor-ferromagnet-superconductor junctions. Applied Physics Letters, 116(9), Article 092601. https://doi.org/10.1063/1.5143269
Published inApplied Physics Letters
© 2020 Author(s)
Superconductor-ferromagnet-superconductor Josephson junctions are known to exist in the 0 and π states with the transitions between them controlled by the temperature and ferromagnetic interlayer thickness. We demonstrate that these transitions can be controlled also by the external magnetic field directed perpendicular to the layers. By varying the ratio of diffusion coefficients in superconducting and ferromagnetic layers, these field-controlled transitions can be made detectable for arbitrary large values of the exchange energy in the ferromagnet. We also show that the 0−π transitions in the perpendicular field can be observed as the specific features of the flux-flow conductivity dependencies on the ferromagnetic thickness in accordance with recent experimental results.
PublisherAmerican Institute of Physics
ISSN Search the Publication Forum0003-6951
Publication in research information system
MetadataShow full item record
Related funder(s)Academy of Finland
Funding program(s)Academy Research Fellow, AoF
Additional information about fundingThis work was supported by the Academy of Finland (Project No. 297439), the Russian Science Foundation (Grant No. 19-19-00594), and the European Regional Development Fund (Mobilitas Pluss under Grant No. MOBTP152).
Showing items with similar title or keywords.
Quasiclassical free energy of superconductors : Disorder-driven first-order phase transition in superconductor/ferromagnetic-insulator bilayers Virtanen, Pauli; Vargunin, Artjom; Silaev, Mikhail (American Physical Society, 2020)n the seminal work by G. Eilenberger, Z. Phys. 214, 195 (1968), a closed-form expression for the free energy of inhomogeneous spin-singlet superconductor in terms of quasiclassical propagators has been suggested. However, ...
Dynamic Spin-Triplet Order Induced by Alternating Electric Fields in Superconductor-Ferromagnet-Superconductor Josephson Junctions Bobkova, I. V.; Bobkov, A. M.; Silaev, M. A. (American Physical Society (APS), 2021)Dynamic states offer extended possibilities to control the properties of quantum matter. Recent efforts are focused on studying the ordered states which appear exclusively under the time-dependent drives. Here, we demonstrate ...
Resistive State of Superconductor-Ferromagnet-Superconductor Josephson Junctions in the Presence of Moving Domain Walls Rabinovich, D. S.; Bobkova, I. V.; Bobkov, A. M.; Silaev, M. A. (American Physical Society, 2019)We describe resistive states of the system combining two types of orderings—a superconducting and a ferromagnetic one. It is shown that in the presence of magnetization dynamics such systems become inherently dissipative ...
Magnetization Dynamics in Proximity-Coupled Superconductor-Ferromagnet-Superconductor Multilayers Golovchanskiy, I.A.; Abramov, N.N.; Stolyarov, V.S.; Chichkov, V.I.; Silaev, M.; Shchetinin, I.V.; Golubov, A.A.; Ryazanov, V.V.; Ustinov, A.V.; Kupriyanov, M.Yu. (American Physical Society (APS), 2020)In this work, magnetization dynamics is studied in superconductor-ferromagnet-superconductor three-layered films in a wide frequency, field, and temperature ranges using the broad-band ferromagnetic resonance measurement ...
Ferromagnetic kinetic exchange interaction in magnetic insulators Huang, Zhishuo; Liu, Dan; Mansikkamäki, Akseli; Vieru, Veacheslav; Iwahara, Naoya; Chibotaru, Liviu F. (American Physical Society (APS), 2020)The superexchange theory predicts dominant antiferromagnetic kinetic interaction when the orbitals accommodating magnetic electrons are covalently bonded through diamagnetic bridging atoms or groups. Here we show that ...