Crystal structure and electrical resistivity studies of Dy ( Mn 0.4 − x Co x Fe 0.6 ) 2 intermetallics

• Published in: Journal of alloys and compounds 2008-07, Vol.459 (1), p.13-17
• Main Authors: Stoch, P., Guzdek, P., Zwoźniak, A., Pszczoła, J., Chmist, J., Pańta, A.
• Format: Article
• Language: English
• Subjects: Alloys; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Crystal structure; Curie temperatures; Electrical and thermal conduction in crystalline metals and alloys; Electrical resistivity; Electronic conduction in metals and alloys; Electronic transport in condensed matter; Exact sciences and technology; Intermetallics; Physics; Structure of solids and liquids; crystallography; Structure of specific crystalline solids
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2007.04.245

Synthesis and X-ray analysis (300 K) of a new Dy ( Mn 0.4 − x Co x Fe 0.6 ) 2 series were performed. The lattice parameter is considerably reduced with x. Electrical resistivity for the Dy ( Mn 0.4 − x Co x Fe 0.6 ) 2 intermetallic series was measured in a wide temperature range and the parameters characterising the dependence of resistivity on temperature and composition were determined. The magnetic part of the resistivity was used to estimate Curie temperatures. The Curie temperature T C is strongly increased as a result of Mn/Co substitution. The obtained T C -results are related to the data known for the Dy ( Mn 1 − x Fe x ) 2 and Dy ( Fe 1 − x Co x ) 2 series.