6533b852fe1ef96bd12ab844

RESEARCH PRODUCT

Resistive state of SFS Josephson junctions in the presence of moving domain walls

D. S. RabinovichI. V. BobkovaA. M. BobkovM. A. Silaev

subject

Superconductivity (cond-mat.supr-con)Condensed Matter - SuperconductivityCondensed Matter::SuperconductivityFOS: Physical sciencesCondensed Matter::Mesoscopic Systems and Quantum Hall Effect

description

We describe resistive states of the system combining two types of orderings - superconducting and 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.

yearjournalcountryeditionlanguage
2019-04-06
https://dx.doi.org/10.48550/arxiv.1904.03449