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The solid solutions (Ce1-xLax)RuSn
hal.structure.identifier | Westfälische Wilhelms-Universität Münster = University of Münster [WWU] | |
dc.contributor.author | NIEHAUS, Oliver | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | CHEVALIER, Bernard | |
hal.structure.identifier | European Synchrotron Radiation Facility [ESRF] | |
dc.contributor.author | ABDALA, Paula | |
hal.structure.identifier | Westfälische Wilhelms-Universität Münster = University of Münster [WWU] | |
dc.contributor.author | WINTER, Florian | |
hal.structure.identifier | Westfälische Wilhelms-Universität Münster = University of Münster [WWU] | |
dc.contributor.author | PÖTTGEN, Rainer | |
dc.date.issued | 2013 | |
dc.identifier.issn | 0932-0776 | |
dc.description.abstractEn | X-Ray-pure samples of the solid solutions (Ce1−xLax)RuSn were obtained up to x = 0.5. Powder diffraction data show the CeRuSn-type superstructure up to x ≈ 0.3 and the CeCoAl-type subcell for higher lanthanum contents. The structure of a single crystal with x = 0.5 was refined on the basis of single-crystal X-ray diffractometer data: CeCoAl type, C2/m, a = 1160.8(2), b = 477.6(1), c = 511.6(1) pm, β =102.97(2)°, wR = 0.0510, 444 F2 values, 20 variables. Magnetic investigations were performed for all samples up to a lanthanum content of x = 0.4. No cooperative phenomena could be observed, and all samples show Curie-Weiss behavior above a certain temperature. The cerium valence is about 3.32(2) for all samples of the solid solution. Hence, La3+ has to replace Ce3+as well as Ce4+ in a particular quantity. The electrical resistivity measurements confirm the suppression of the magnetic ordering and the structural transition upon replacement of cerium by lanthanum. 119Sn Mössbauer spectra of samples with x = 0.2 and 0.5 are indicative of single tin sites with isomer shifts of δ = 1.86(1) mm s−1 for x = 0.2 and δ = 1.88(1) mm s−1 for x = 0.5. Both signals are subject to significant quadrupole splitting, a consequence of the low site symmetry. Results of XANES measurements are perfectly in line with the cerium valences determined by susceptibility measurements and yield a constant value of 3.16(1) for all investigated compounds. | |
dc.language.iso | en | |
dc.publisher | Verlag der Zeitschrift Fuer Naturforschung | |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/ | |
dc.subject.en | Cerium | |
dc.subject.en | Stannide | |
dc.subject.en | Intermediate Valence | |
dc.title.en | The solid solutions (Ce1-xLax)RuSn | |
dc.type | Article de revue | |
dc.identifier.doi | 10.5560/ZNB.2013-3257 | |
dc.subject.hal | Chimie/Matériaux | |
bordeaux.journal | Zeitschrift fur Naturforschung B | |
bordeaux.page | 1279-1287 | |
bordeaux.volume | 68 | |
bordeaux.issue | 12 | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-00921281 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-00921281v1 | |
bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Zeitschrift%20fur%20Naturforschung%20B&rft.date=2013&rft.volume=68&rft.issue=12&rft.spage=1279-1287&rft.epage=1279-1287&rft.eissn=0932-0776&rft.issn=0932-0776&rft.au=NIEHAUS,%20Oliver&CHEVALIER,%20Bernard&ABDALA,%20Paula&WINTER,%20Florian&P%C3%96TTGEN,%20Rainer&rft.genre=article |
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