Academic Journal
Effect of cation disorder on structural, magnetic and dielectric properties of La2MnCoO6 double perovskite
| العنوان: | Effect of cation disorder on structural, magnetic and dielectric properties of La2MnCoO6 double perovskite |
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| المؤلفون: | Barón González, Aura J., Frontera, Carlos, García Muñoz, Josep Lluís, Rivas-Murias, B., Blasco, Javier |
| بيانات النشر: | Institute of Physics Publishing |
| سنة النشر: | 2011 |
| المجموعة: | Digital.CSIC (Consejo Superior de Investigaciones Científicas / Spanish National Research Council) |
| الوصف: | The origin of dielectric anomalies and magnetodielectric response of La2MnCoO6 has been investigated by means of ultra-high resolution synchrotron x-ray powder diffraction, neutron powder diffraction, resistivity, magnetization and dielectric measurements. The study has been performed on two different bulk samples presenting different degrees of Mn/Co order: 95 and 74%. Beside the well-known influence on magnetic properties, our results show that the main effect of disorder lies on the electrical resistivity. Bond distances clearly show Mn4+/Co2+ valence states in the well-ordered sample, while for the disordered one this picture still holds. AC resistivity data show dielectric anomalies and a small magnetodielectric effect, but impedance complex plane analyses prove that these phenomena appear at the frequencytemperature region where extrinsic effects dominate the dielectric response. © 2011 IOP Publishing Ltd. ; Financial support from MICINN (Spanish Government) under projects MAT2006-11080-C02-02, MAT2009-09308 and NANOSELECT CSD2007-00041. ; Peer Reviewed |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | Journal of Physics Condensed Matter 23(49): 496003 (2011); http://hdl.handle.net/10261/52617 |
| DOI: | 10.1088/0953-8984/23/49/496003 |
| الاتاحة: | http://hdl.handle.net/10261/52617 https://doi.org/10.1088/0953-8984/23/49/496003 |
| Rights: | none |
| رقم الانضمام: | edsbas.4039CADA |
| قاعدة البيانات: | BASE |
| DOI: | 10.1088/0953-8984/23/49/496003 |
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