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Superconducting Properties of a Co1/Cu/Co2/Cu/Pb Heterostructure on a PMN‒PT Piezoelectric Substrate

  • 期刊论文

  • 发表日期：

    2024年7月1日

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  • A. A. Kamashev,
  • A. A. Validov,
  • S. A. Bol’shakov,
  • N. N. Garif’yanov,
  • I. A. Garifullin

摘要

Abstract

The authors study the effect a PMN‒PT ([Pb(Mg1/3Nb2/3)O3]0.7‒[PbTiO3]0.3) piezoelectric substrate has on the superconducting properties of a Co1/Cu/Co2/Cu/Pb thin-film heterostructure. A change in temperature Tc of the superconducting transition in electric and magnetic fields is detected. The maximum difference between Tc values is found to be 15 mK in an applied electric field of 1 kV/cm. In an external magnetic field, the greatest Tc difference is more than 80 mK upon changing the mutual orientation of the magnetizations of ferromagnetic layers from collinear to perpendicular.