@inproceedings{bef28edc01f84cc791a153d998a10be7,
title = "Two level telegraphic conductivity fluctuations in ferromagnetic insulating manganite single crystals",
abstract = "Robust two-level telegraph conductivity noise in phase separated ferromagnetic insulating manganite La0.86Ca0.14MnO3 has been observed in exceptionally wide temperature range 130 K - 185 K in the low-resistivity metastable state of the system. The switching rate of the telegraphic noise was found not to depend on applied magnetic field and bias current. In contrast, the amplitude of the telegraphic noise varies in a non monotonic way with decreasing temperature and goes through a clear maximum around 160 K. The amplitude decreases exponentially with increasing bias current in exactly the same manner as the sample resistance increases with the current. This features point out to the dynamic current redistribution between distinct percolation paths in the phase separated material as a possible mechanism behind the robust two-level conductivity fluctuations.",
keywords = "Conductivity fluctuations, ferromagnetic insulators, manganites, random telegraph noise",
author = "Jacek Przybytek and Jan Fink-Finowicki and Grzegorz Jung",
note = "Publisher Copyright: {\textcopyright} 2017 IEEE.; 2017 International Conference on Noise and Fluctuations, ICNF 2017 ; Conference date: 20-06-2017 Through 23-06-2017",
year = "2017",
month = jul,
day = "19",
doi = "10.1109/ICNF.2017.7985967",
language = "English",
series = "2017 International Conference on Noise and Fluctuations, ICNF 2017",
publisher = "Institute of Electrical and Electronics Engineers",
booktitle = "2017 International Conference on Noise and Fluctuations, ICNF 2017",
address = "United States",
}