Structure factor of a relaxor ferroelectric
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| Autors: | , |
|---|---|
| Format: | artículo original |
| Data de publicació: | 2015 |
| Descripció: | We study a minimal model for a relaxor ferroelectric including dipolar interactions, and short-range harmonic and anharmonic forces for the critical modes as in the theory of pure ferroelectrics together with quenched disorder coupled linearly to the critical modes. We present the simplest approximate solution of the model necessary to obtain the principal features of the correlation functions. Specifically, we calculate and compare the structure factor measured by neutron scattering in different characteristic regimes of temperature in the relaxor PbMg1/3Nb2/3O3. |
| Pais: | Kérwá |
| Institution: | Universidad de Costa Rica |
| Repositorio: | Kérwá |
| OAI Identifier: | oai:kerwa.ucr.ac.cr:10669/27866 |
| Accés en línia: | http://journals.aps.org/prb/abstract/10.1103/PhysRevB.91.144105 https://hdl.handle.net/10669/27866 |
| Paraula clau: | relaxor ferroelectrics |