Irreversible Effects in LaGa1-xMnxO3
N. Noginova, F. Chen, E. Etheridge
TL;DR
This paper reports a quasi-irreversible increase in electrical conductivity in LaGa1-xMnxO3 crystals, caused by ionization and lattice distortions, which can be reversed by heating above a phase transition.
Contribution
It introduces a new understanding of conductivity changes in LaGa1-xMnxO3 related to ionization and lattice effects, with potential implications for material stability.
Findings
Conductivity increases are long-lasting at room temperature.
Heating above the phase transition erases the conductivity increase.
Ionization and lattice distortions explain the observed effects.
Abstract
Quasi-irreversible increase in the electrical conductivity is observed in single crystals of LaGa1-xMnxO3. The effect lasts for long time at room temperature and can be erased by heating of the crystal above the phase transition temperature. We explain the observed effects in terms of ionization and local lattice distortion processes.
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