Abstract
We study the structural and magnetic properties of Heusler based Ni50Mn50-xSbx in the composition range 5.0≤x≤25.0. The cubic phase is preserved in the range 17.0≤x≤25.0, and the presence of martensitic transformations are found in alloys with x≤15.0. In a critical composition range 12.5≤x≤10.0, the magnetic coupling in both austenitic and martensitic phases is paramagnetic, however, the presence of antiferromagnetic short-range correlations is observed in both phases. We discuss the consequences of these correlations on the behavior of the magnetic moment with respect to electronic properties.
| Original language | English |
|---|---|
| Pages (from-to) | 2093-2109 |
| Number of pages | 17 |
| Journal | Philosophical Magazine |
| Volume | 89 |
| Issue number | 22-24 |
| DOIs | |
| Publication status | Published - Jan 2009 |
| Externally published | Yes |
Funding
This work was supported by Deutsche Forschungsgemeinschaft (No. SPP1239), CICyT (Spain) project MAT2007-61200, and the Institut Laue-Langevin, Grenoble.
| Funders | Funder number |
|---|---|
| Deutsche Forschungsgemeinschaft |
Keywords
- Heusler alloys
- Magnetic correlations
- Magnetization
- Neutron polarization analysis
- Phase diagrams