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Preparation and physical properties of the solid solutions Cu1+xMn1-xO2 (0 < x < 0.2)
| hal.structure.identifier | Laboratoire de Stockage et de Valorisation des Energies Renouvelables | |
| dc.contributor.author | TRARI, Mohamed | |
| hal.structure.identifier | Department of SciTec | |
| dc.contributor.author | TÖPFER, Jörg | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | DORDOR, Patrice | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | GRENIER, Jean-Claude | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | POUCHARD, Michel | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | DOUMERC, Jean-Pierre | |
| dc.date.issued | 2005 | |
| dc.identifier.issn | 0022-4596 | |
| dc.description.abstractEn | Solid solutions of formula Cu1+xMn1−xO2 (0 < x < 0.2) were synthesized by solid state reaction in silica sealed tubes. They crystallize with the monoclinic crednerite structure (space group C2/m). The stability domain in air is quite narrow and a phase diagram is proposed and compared with previous results. Magnetic study confirmed the HS state of Mn3+ ions and revealed that the predominant interactions are antiferromagnetic. Their strength decreases with x, which can be ascribed to a dilution effect, and long-range 3D magnetic ordering observed for CuMnO2, disappears for x> 0.05. The crednerite solid solutions are p-type semiconductors. Modeling the thermoelectric power behavior suggests that charge carriers are Cu2+ holes diffusing in Cu layers for small x values and Mn4+ holes diffusing in Mn layers for x>0.05. For larger x values a saturation effect limits the charge carrier concentration. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | Crednerite | |
| dc.subject.en | Magnetic properties | |
| dc.subject.en | Thermoelectric power | |
| dc.subject.en | Jahn–Teller effect | |
| dc.subject.en | Manganese oxides | |
| dc.title.en | Preparation and physical properties of the solid solutions Cu1+xMn1-xO2 (0 < x < 0.2) | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.jssc.2005.06.009 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Journal of Solid State Chemistry | |
| bordeaux.page | 2751-2758 | |
| bordeaux.volume | 178 | |
| bordeaux.issue | 9 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00096036 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00096036v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Solid%20State%20Chemistry&rft.date=2005&rft.volume=178&rft.issue=9&rft.spage=2751-2758&rft.epage=2751-2758&rft.eissn=0022-4596&rft.issn=0022-4596&rft.au=TRARI,%20Mohamed&T%C3%96PFER,%20J%C3%B6rg&DORDOR,%20Patrice&GRENIER,%20Jean-Claude&POUCHARD,%20Michel&rft.genre=article |
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