Abstract:
Features of a phase transition between 0 and π states in superconductor/ferromagnet/superconductor (SFS) Josephson structures with thin superconducting layers and a ferromagnetic barrier are studied experimentally and theoretically. The dependence of the critical temperature Tc of a transition of the hybrid structure to a superconducting state on the thickness of superconducting layers ds is analyzed by a local method involving measurements of the nonlinear microwave response of the system by a near-field probe. An anomalous increase in the measured temperature Tc at the reduction of the thickness ds is detected and is attributed to the 0-π transition.
Citation:
S. N. Vdovichev, Yu. N. Nozdrin, E. E. Pestov, P. A. Yunin, A. V. Samokhvalov, “Phase transitions in hybrid SFS structures with thin superconducting layers”, Pis'ma v Zh. Èksper. Teoret. Fiz., 104:5 (2016), 336–341; JETP Letters, 104:5 (2016), 329–333
This publication is cited in the following 11 articles:
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