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The Magnetic/Electrical Phase Diagram of Cr-Doped Antiperovskite Compounds GaCFe3−xCrx (0≤x≤0.9)

We report the effect of Cr doping on the structural, magnetic, and electrical transport properties in Cr-doped antiperovskite compounds GaCFe3−xCrx (0≤x≤0.9). With increasing the Cr content x, the lattice constant increases while both the Curie temperature and the saturated magnetization decrease gr...

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Bibliographic Details
Published in:Advances in condensed matter physics 2013-01, Vol.2013 (2013), p.1-9
Main Authors: Lin, S., Wang, B. S., Tong, P., Shao, D. F., Huang, Y. N., Lu, W. J., Zhao, B. C., Song, W. H., Sun, Yuping
Format: Article
Language:English
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Summary:We report the effect of Cr doping on the structural, magnetic, and electrical transport properties in Cr-doped antiperovskite compounds GaCFe3−xCrx (0≤x≤0.9). With increasing the Cr content x, the lattice constant increases while both the Curie temperature and the saturated magnetization decrease gradually. The electrical resistivity shows different behaviors as a function of x. For x≤0.6, there exists a semiconductor-like behavior below a certain temperature which decreases with increasing x. In contrast, for 0.7≤x≤0.9, the resistivity shows a metallic behavior in the whole temperature measured (2–350 K). In particular, the Fermi-liquid behavior is obtained below 70 K. Finally, based on the magnetic and electrical properties of GaCFe3−xCrx (0≤x≤0.9) a magnetic/electrical phase diagram was plotted.
ISSN:1687-8108
1687-8124
DOI:10.1155/2013/729458