Open AccessВлияние фазового перехода второго рода на электропроводность структуры Cr-полимер-Cu
Author(s) -
И.Р. Набиуллин,
Р.М. Гадиев,
А.Н. Лачинов
Publication year - 2019
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2019.06.47697.312
Subject(s) - chromium , materials science , conductivity , condensed matter physics , electrical resistivity and conductivity , phase transition , antiferromagnetism , paramagnetism , polymer , phase (matter) , chemistry , metallurgy , composite material , physics , organic chemistry , quantum mechanics
The results of the study of an anomalous increase in conductivity in the Cr / polymer / Cu structure near the phase transition temperature of an antiferromagnet / paramagnet in chromium are presented. Polydiphenylenephthalide was used as a polymer. In thin films of this polymer, the effect of charge instability was previously observed. It was found that as the phase transition temperature in the structure approaches, an increase in current fluctuations is observed, which in the phase transition area switch the structure's conductivity to a highly conductive state with anomalously low resistance. The interpretation of the presented results is carried out taking into account the change in charge carrier injection near the phase transition temperature in chromium.