Competition between spin-glass and antiferromagnetic order in EuxSr1−xAs3 |
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| Authors: | GV Lecomte Hv Löhneysen W Bauhofer G Güntherodt |
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| Institution: | 2. Physikalisches Institut der Rheinisch-Westfälischen Technischen Hochschule, Templergraben 55, D-5100 Aachen, Federal Republic of Germany;Max-Planck-Institut für Festkörperforschung, Heisenbergstr. 1, D-7000 Stuttgart 80, Federal Republic of Germany;2. Physikalisches Institut der Universität Köln, Zülpicher Str. 77, D-5000 Köln 41, Federal Republic of Germany |
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| Abstract: | Measurements of the magnetic a.c. susceptibility χ of EuxSr1?xAs3 single crystals (0.10 ? x ? 0.78) are reported. For the lower concentrations, spin-glass like maxima with a.c. frequency dependent positions and heights are observed. Samples with x = 0.54 and 0.65 exhibit a complex magnetic behavior (with directional dependence of χ observed for x = 0.54) which gives way to antiferromagnetic ordering when x is further increased towards EuAs3. |
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