Publications

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

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

IOP CONFERENCE SERIES: MATERIALS SCIENCE AND ENGINEERING
Volume: 699 Pages:
DOI: 10.1088/1757-899X/699/1/012026
Published: 2019

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. © Published under licence by IOP Publishing Ltd.

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