Specific heat of EuxSrl-xTe


Dateien zu dieser Ressource

Prüfsumme: MD5:c8afffecb84b137af5e7966fb6f3d320

SCHEER, Elke, Joachim WOSNITZA, Hilbert von LÖHNEYSEN, 1991. Specific heat of EuxSrl-xTe. In: Zeitschrift für Physik B - Condensed Matter. 85, pp. 79-86

@article{Scheer1991Speci-4710, title={Specific heat of EuxSrl-xTe}, year={1991}, doi={10.1007/BF01387790}, volume={85}, journal={Zeitschrift für Physik B - Condensed Matter}, pages={79--86}, author={Scheer, Elke and Wosnitza, Joachim and Löhneysen, Hilbert von} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/4710"> <dcterms:rights rdf:resource="https://creativecommons.org/licenses/by-nc-nd/2.0/legalcode"/> <dcterms:bibliographicCitation>First publ. in: Zeitschrift für Physik B - Condensed Matter 85 (1991), S. 79-86</dcterms:bibliographicCitation> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/4710"/> <dc:creator>Wosnitza, Joachim</dc:creator> <dc:contributor>Löhneysen, Hilbert von</dc:contributor> <dc:format>application/pdf</dc:format> <dc:creator>Löhneysen, Hilbert von</dc:creator> <dcterms:issued>1991</dcterms:issued> <dcterms:abstract xml:lang="eng">In this paper, we report on measurements of the specific heat C of single-crystalline EuSrTe at temperatures between 60 mK and 15 K and in magnetic fields up to 6 T. Pure antiferromagnetic EuTe shows unusual critical behavior in the vicinity of the N6el temperature T_N = 9.8 K with a positive critical exponent instead of the 3d-Heisenberg exponent a = -0.12. Possible reasons for this discrepancy between theory and experiment include magnetic anisotropy effects due to magnetic dipole-dipole interactions, which may give rise to a cross-over of the critical behavior very close to T_N. This anisotropy is also seen in the specific heat below 1 K where an exponential decay of C is observed, and in the dependence of the magnetic susceptibility on the direction of the applied field. With increasing dilution of EuTe with nonmagnetic Sr, the critical behavior changes: a becomes negative and decreases continuously. This concentration dependence of a was previously observed in the diluted ferromagnetic system EuSrS. Our data thus support that the apparent change in the critical behavior depends on the degree of disorder. Samples with concentration x lower than the critical concentration x_c reveal spin-glass behavior in the specific heat. In addition, the dependence of T_N on magnetic fields is discussed.</dcterms:abstract> <dc:creator>Scheer, Elke</dc:creator> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T14:49:46Z</dc:date> <dc:rights>deposit-license</dc:rights> <dcterms:title>Specific heat of EuxSrl-xTe</dcterms:title> <dc:language>eng</dc:language> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T14:49:46Z</dcterms:available> <dc:contributor>Scheer, Elke</dc:contributor> <dc:contributor>Wosnitza, Joachim</dc:contributor> </rdf:Description> </rdf:RDF>

Dateiabrufe seit 01.10.2014 (Informationen über die Zugriffsstatistik)

02_Specific_heat_of_Scheer_ZPhysB.pdf 163

Das Dokument erscheint in:

deposit-license Solange nicht anders angezeigt, wird die Lizenz wie folgt beschrieben: deposit-license

KOPS Suche


Mein Benutzerkonto