The influence of d10-d10 interactions in Ag5Te1.8Se0.2Cl and Ag5Te1.6Se0.4Cl on structural and thermoelectric properties
| hal.structure.identifier | Institut für Anorganische und Analytische Chemie | |
| dc.contributor.author | ECKSTEIN, Nadine | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | BOBET, Jean-Louis | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | CHEVALIER, Bernard | |
| hal.structure.identifier | Institut für Anorganische und Analytische Chemie | |
| dc.contributor.author | NILGES, Tom | |
| dc.date.issued | 2011 | |
| dc.identifier.issn | 0932-0776 | |
| dc.description.abstractEn | Measurements of the thermopower and of the thermal diffusivity and a detailed analysis of the structural features by temperature-dependent single-crystal structure determinations of silver ionconducting Ag5Te1.8Se0.2Cl and Ag5Te1.6Se0.4Cl were performed to investigate the interaction of silver ions in their disordered state. The substituted phases show an order/disorder phase transition at 273.3(2) and 302.5(2) K, respectively, accompanied by a drop of the thermal diffusivity and a minimum plateau of the thermopower right after the transition. Silver ions are arranged in welldefined strands along the crystallographic c axis characterized by a set of not fully occupied sites. Ag5Te1.6Se0.4Cl shows a negative thermal expansion during temperature rise right after the silver order/disorder phase transition; this is explicable by attractive d10-d10 interactions within the disordered silver substructure. After the minimum values of the thermopower have been reached, these values rise in parallel to the decrease of the d10-d10 interactions. Ag5Te1.6Se0.4Cl shows a very low value of the thermal diffusivity of 0.070 mm2 s−1 at 300.7 K. | |
| dc.language.iso | en | |
| dc.publisher | Verlag der Zeitschrift Fuer Naturforschung | |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/ | |
| dc.subject.en | Silver | |
| dc.subject.en | Tellurium | |
| dc.subject.en | Polytelluride | |
| dc.subject.en | Thermoelectrics | |
| dc.subject.en | d10-d10 Interactions | |
| dc.title.en | The influence of d10-d10 interactions in Ag5Te1.8Se0.2Cl and Ag5Te1.6Se0.4Cl on structural and thermoelectric properties | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.5560/ZNB.2011.66b1005 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Zeitschrift fur Naturforschung B | |
| bordeaux.page | 1005-1014 | |
| bordeaux.volume | 66 | |
| bordeaux.issue | 10 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00643613 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00643613v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Zeitschrift%20fur%20Naturforschung%20B&rft.date=2011&rft.volume=66&rft.issue=10&rft.spage=1005-1014&rft.epage=1005-1014&rft.eissn=0932-0776&rft.issn=0932-0776&rft.au=ECKSTEIN,%20Nadine&BOBET,%20Jean-Louis&CHEVALIER,%20Bernard&NILGES,%20Tom&rft.genre=article |
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