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. (2019). Resistive State of Superconductor-Ferromagnet-Superconductor Josephson Junctions in the Presence of Moving Domain Walls. Physical Review Letters, 123(20), Article 207001. https://doi.org/10.1103/PhysRevLett.123.207001
Published inPhysical Review Letters
© 2019 American Physical Society
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 and in principle cannot sustain any amount of the superconducting current because of the voltage generated by the magnetization dynamics. We calculate generic current-voltage characteristics of a superconductor-ferromagnet-superconductor Josephson junction with an unpinned domain wall and find the low-current resistance associated with the domain wall motion. We suggest the finite slope of Shapiro steps as the characteristic feature of the regime with domain wall oscillations driven by the ac external current flowing through the junction.
PublisherAmerican Physical Society
Publication in research information system
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Related funder(s)Academy of Finland
Funding program(s)Research post as Academy Research Fellow, AoF
Additional information about fundingThe research of I. V. B and A. M. B has been carried out within the state task of ISSP RAS with the support by RFBR Grant No. 19-02-00466. D. S. R acknowledges the support by RFBR Grants No. 19-02-00466 and No. 19-02-00898. I. V. B and D. S. R also acknowledge the financial support by Foundation for the Advancement of Theoretical Physics and Mathematics “BASIS”. The work of M. A. S was supported by the Academy of Finland (Project No. 297439) and Russian Science Foundation, Grant No. 19-19-00594. ...
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