| Numéro |
J. Phys. IV France
Volume 11, Numéro PR11, Décembre 2001
International Conference on Thin Film Deposition of Oxide Multilayers Hybrid Structures
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|---|---|---|
| Page(s) | Pr11-163 - Pr11-167 | |
| DOI | https://doi.org/10.1051/jp4:20011126 | |
International Conference on Thin Film Deposition of Oxide Multilayers Hybrid Structures
J. Phys. IV France 11 (2001) Pr11-163-Pr11-167
DOI: 10.1051/jp4:20011126
1 Faculty of Physics, Vilnius University, Sauletekio 9, 2054 Vilnius, Lithuania
2 High Tc Superconductivity Laboratory, Semiconductor Physics Institute, Gostauto 11, 2600 Vilnius, Lithuania
© EDP Sciences 2001
J. Phys. IV France 11 (2001) Pr11-163-Pr11-167
DOI: 10.1051/jp4:20011126
Model of electric field-induced charge disordering in praseodymium manganites
S. Lapinskas1 and E.E. Tornau21 Faculty of Physics, Vilnius University, Sauletekio 9, 2054 Vilnius, Lithuania
2 High Tc Superconductivity Laboratory, Semiconductor Physics Institute, Gostauto 11, 2600 Vilnius, Lithuania
Abstract
We propose a model for an electric field-driven transition fiom the ordered NaCl-type phase to the disordered phase. Such a transition might be a prototype of charge disordering transition observed in Pr1-cCacMnO3.
We assume the lattice-gas model and hopping conductivity of charge carriers. The solution of this model, performed by the Monte Carlo method, demonstrates that considerably high electric field can disorder well-ordered phases. The comparison with the data for charge disordering in Pr1-cCacMnO3 shows that required fields are much too high. We analyze the obtained results trying to determine a possible scenario for conductivity in Pr1-cCacMnO3.
© EDP Sciences 2001