Magnetic field tuning of polaron losses in Fe doped BaTiO3 single crystals
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | RAMANATHA THEERTHAN, Dayalu Anand | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | ARTEMENKO, Alla | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | MAGLIONE, Mario | |
| dc.date.created | 2012-07-06 | |
| dc.date.issued | 2012 | |
| dc.identifier.issn | 0953-8984 | |
| dc.description.abstractEn | Artificial tuning of dielectric parameters can result from interface conductivity in polycrystalline materials. In ferroelectric single crystals, it was already shown that ferroelectric domain walls can be the source of such artificial coupling. We show here that low temperature dielectric losses can be tuned by a dc magnetic field. Since such losses were previously ascribed to polaron relaxation we suggest this results from the interaction of hopping polarons with the magnetic field. The fact that this losses alteration has no counterpart on the real part of the dielectric permittivity confirms that no interface is to be involved in this purely dynamical effect. The contribution of mobile charges hopping among Fe related centers was confirmed by ESR spectroscopy showing maximum intensity at ca T\sim40 K. | |
| dc.language.iso | en | |
| dc.publisher | IOP Publishing | |
| dc.subject.en | Dielectrics | |
| dc.subject.en | Polaron | |
| dc.subject.en | Magnetism | |
| dc.subject.en | BaTiO3 | |
| dc.subject.en | Iron | |
| dc.subject.en | Single crystal | |
| dc.title.en | Magnetic field tuning of polaron losses in Fe doped BaTiO3 single crystals | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1088/0953-8984/24/40/405901 | |
| dc.subject.hal | Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci] | |
| dc.subject.hal | Chimie/Matériaux | |
| dc.identifier.arxiv | 1207.1593 | |
| bordeaux.journal | Journal of Physics: Condensed Matter | |
| bordeaux.page | 405901 (6 p.) | |
| bordeaux.volume | 24 | |
| bordeaux.issue | 40 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00732491 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00732491v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Physics:%20Condensed%20Matter&rft.date=2012&rft.volume=24&rft.issue=40&rft.spage=405901%20(6%20p.)&rft.epage=405901%20(6%20p.)&rft.eissn=0953-8984&rft.issn=0953-8984&rft.au=RAMANATHA%20THEERTHAN,%20Dayalu%20Anand&ARTEMENKO,%20Alla&MAGLIONE,%20Mario&rft.genre=article |
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