Abstract
We report on the fast preparation of the ternary magnetic semiconductor spinel FeCr2S4 using the Field-Activated Sintering Technique (FAST). The structural (X-ray) and magnetic (Squid) characterization demonstrates a similarity of the properties of the FAST crystals and those prepared by conventional solid-state synthesis. Residual structural disorder in FAST samples has a pronounced influence on the ferrimagnetic–paramagnetic transition and the orbital ordering at low temperatures.
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Acknowledgements
The authors are thankful to Prof. A. Loidl for fruitful discussions and Mrs. Dana Vieweg for experimental assistance. One of the authors (V.Z.) acknowledges the support of the U.S. Civilian Research & Development Foundation (CRDF) via grant MOE1-2670-CS-05. The support of the US CRDF and MRDA via BGP III grant MOP2-3050 is also gratefully acknowledged.
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Zestrea, V., Kodash, V.Y., Felea, V. et al. Structural and magnetic properties of FeCr2S4 spinel prepared by field-activated sintering and conventional solid-state synthesis. J Mater Sci 43, 660–664 (2008). https://doi.org/10.1007/s10853-007-2168-7
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DOI: https://doi.org/10.1007/s10853-007-2168-7