RUS  ENG
Full version
JOURNALS // Fizika Tverdogo Tela // Archive

Fizika Tverdogo Tela, 2014 Volume 56, Issue 6, Pages 1100–1105 (Mi ftt12026)

This article is cited in 2 papers

Ferroelectricity

Transport properties of a ferroelectric tunnel junction in bilayer ferroelectric/manganite structures

M. S. Ivanov, A. M. Buryakov, V. G. Morozov, E. D. Mishina, A. S. Sigov

MIREA — Russian Technological University, Moscow

Abstract: This paper presents the results of an experimental investigation of current flow through a ferroelectric nanolayer in a series of bilayer ferroelectric/manganite structures prepared by metalorganic aerosol deposition on a MgO substrate. It has been shown that a variation in the thickness of the ferroelectric layer in a bilayer ferroelectric/manganite structure leads to a change in the metal-insulator phase transition temperature of the manganite layer and also affects the transport properties of the ferroelectric/manganite structure. Based on the analysis of the experimental results, it is demonstrated that the ferroelectric layer up to 4 nm thick exhibits polarization properties. In the theoretical analysis, it is assumed that electrical conduction of bilayer structures is provided by a dual mechanism combining the electron tunneling through a ferroelectric barrier and the ohmic current flow in a manganite layer. The possibility of retaining the mechanism of charge carrier tunneling in a bilayer ferroelectric/manganite structure through the ferroelectric layer up to 6 nm thick is discussed.

Received: 05.12.2013


 English version:
Physics of the Solid State, 2014, 56:6, 1144–1149

Bibliographic databases:


© Steklov Math. Inst. of RAS, 2025