Open AccessThe effect of cation substitution on conductivity in the region of structural phase transition
Author(s) -
L. V. Udod,
M N Sitnicov,
О Н Бандурина,
С. О. Коновалов
Publication year - 2022
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1230/1/012021
Subject(s) - conductivity , bismuth , materials science , phase transition , ion , electrical resistivity and conductivity , substitution (logic) , phase (matter) , stoichiometry , chromium , analytical chemistry (journal) , chemistry , condensed matter physics , metallurgy , organic chemistry , physics , computer science , programming language , engineering , electrical engineering
The effect of non-stoichiometric substitution of chromium ions on the conductivity of bismuth stannates was studied. The measurement of the current-voltage characteristic in the temperature range 300-800 K and electric fields from -800 to 800 V/cm was carried out. A change of the conductivity type from hopping to tunnel-emission in the structural phase transition region is established. The influence of the concentration of the substituting ion on the change of the conductivity type was determined.