Tailoring quasi-two-dimensional high conductivity and superconductivity areas at the interfaces of ferroelectric/dielectric heterostructures

R. F. Mamin, D. P. Pavlov, I. I. Piyanzina, Yu V. Lysogorskiy, V. M. Mukhortov, T. Adachi, T. Kawamata, Y. Koike, A. M. Balbashev, D. A. Tayurskii, V. V. Kabanov

Research output: Contribution to journalConference articlepeer-review

Abstract

The results of the investigations of high conducting and superconducting areas at the interfaces between ferroelectric oxide and insulating oxide are presented. The numerical simulations of BaTiO3/LaMnO3 and BaTiO3/La2CuO4 heterostructures have been performed. It is found that in the samples of the Ba0.8Sr0.2TiO3/LaMnO3 heterostructure the electrical resistance decreases significantly and exhibits metallic behaviour at low temperatures for the case when the c axis of ferroelectric film is directed along the normal to the surface of the single crystal. The superconducting behaviour with transition temperature Tc about 30K has been found at the interface of the Ba0.8Sr0.2TiO3/La2CuO4 heterostructure. The proposed concept promises the ferroelectrically controlled interface conductivity and superconductivity.

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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