The Magnetic/Electrical Phase Diagram of Cr-Doped Antiperovskite Compounds GaCFe3−xCrx (0≤x≤0.9). (19th January 2013)

• Record Type: Journal Article
• Authors: Lin, S.; Wang, B. S.; Tong, P.; Shao, D. F.; Huang, Y. N.; Lu, W. J.; Zhao, B. C.; Song, W. H.; Sun, Y. P.
• Other Names: Takenaka Koshi Academic Editor.
• Is Part Of: Advances in condensed matter physics. Volume 2013(2013)
• Publication Date: 2013-01-19
• Subjects: Condensed matter -- Periodicals; Condensed matter; Periodicals; 530.41
• DOI: 10.1155/2013/729458
• Languages: English
• ISSNs: 1687-8124

Abstract

Abstract : We report the effect of Cr doping on the structural, magnetic, and electrical transport properties in Cr-doped antiperovskite compounds GaCFe 3 − x Cr x (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 GaCFe 3 − x Cr x (0 ≤ x ≤ 0.9 ) a magnetic/electrical phase diagram was plotted.