Structural characterization and magnetic properties of the spinel compound CoIn0.5Cr1.5S4

✍ Scribed by G. E. Delgado; V. Sagredo; F. Bolzoni

• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 183 KB
• Volume: 43
• Category: Article
• ISSN: 0232-1300
• DOI: 10.1002/crat.200711037

✦ Synopsis

Single crystals of the magnetic semiconductor CoIn 0.5 Cr 1.5 S 4 , belong to the system CoIn (2-2X) Cr (2X) S 4 with x= 0.75, was grown by the chemical transport method. X-ray powder diffraction characterization by the Rietveld method indicated that CoIn 0.5 Cr 1.5 S 4 crystallizes in the space group Fd-3m, Z = 8, with a = 10.0700(6) Å and V = 1021.2(1) Å 3 , in a normal spinel structure. The temperature dependence of the DC magnetization suggests that the studied compound presents a ferromagnetic behavior with a Curie temperature Tc = 220 K. Sharp spin-glass like behavior was found also.