Field cooling memory effect in Bi2212 and Bi2223 single crystals

D. Shaltiel, H. A.Krug Von Nidda, B. Rosenstein, B. Ya Shapiro, M. Golosovsky, I. Shapiro, A. Loidl, B. Bogoslavsky, T. Fujii, T. Watanabe, T. Tamegai

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4 Scopus citations


A memory effect in the Josephson vortex system created by a magnetic field in the highly anisotropic superconductors Bi2212 and Bi2223 is demonstrated using microwave power absorption. This surprising effect appears despite a very low viscosity of Josephson vortices compared to Abrikosov vortices. The superconductor is field-cooled in a DC magnetic field Hm oriented parallel to the CuO planes through the critical temperature Tc down to 4K, with subsequent reduction of the field to zero and again above H m. A large microwave power absorption signal is observed at a magnetic field just above the cooling field, clearly indicating a memory effect. The dependence of the signal on a deviation of the magnetic field from H m is the same for a wide range of Hm from 1500 to 17 000G.

Original languageEnglish
Article number075001
JournalSuperconductor Science and Technology
Issue number7
StatePublished - 2010


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