13

NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2012, 3 (6), P. 112–122

IMPEDANCE SPECTROSCOPY OF POLYCRYSTALLINE MATERIALS BASED ON THE AURIVILLIUS PHASE SYSTEM Bi₄Ti₃O₁₂–BiFeO₃

N.A. Lomanova – Ioffe Physical Technical Institute, Saint Petersburg, Russia, researcher, natus@hotbox.ru
V.V. Gusarov – Ioffe Physical Technical Institute, Saint Petersburg, Russia and Saint Petersburg State Technological Institute (Technical University), Saint Petersburg, Russia, Head of the Department of Physical Chemistry, Doctor of Sciences, Professor, victor.v.gusarov@gmail.com

The thickness effect of perovskite-like blocks Aurivillius phases Bi_m+1Fe_m−3Ti₃O_3m+3 on their electrical properties were investigated. It is shown that there exists the change in the conductivity of the Aurivillius phases for certain thicknesses of perovskite-like blocks, which correspond to a sharp decrease in their stability.

Keywords: oxides; the Aurivillius phases; nanosized perovskite-like layers; electrical properties; impedance spectroscopy.

UDC 541.124

PACS 61.66.Fn

Download