Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8155711 | Journal of Magnetism and Magnetic Materials | 2015 | 5 Pages |
Abstract
Crystallographic and magnetic properties of bulk (Mn1âxCox)2VGa alloys with 0â¤xâ¤0.50 are reported in this work. All the alloys exhibit stable L21 structure. Unit cell volume of this series of alloys decreased from 207.5 Ã
3 to 195.1Â Ã
3 as x was increased from 0 to 0.50. All the alloys shows ferrimagnetic behavior with Curie temperature decreasing from 763 K to 367 K with increase in x. Saturation magnetization (Ms) measured for the alloys with x=0, 0.25 and 0.50 are 1.84 μB/f.u., 0.85 μB/f.u. and 0.30 μB/f.u., respectively, as compared to the values of 2.00 μB/f.u., 1.00 μB/f.u. and 0 μB/f.u., predicted by the Slater-Pauling (S-P) rule. While explaining the deviations in the Ms from the values predicted by the S-P rule, a fully compensated ferrimagnet is expected in an alloy with total number of valance electrons of 24.1.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Bhargab Deka, R.K. Singh, A. Srinivasan,