Document Type
Article
Publication Date
8-1-2001
Abstract
From magnetic circular dichroism measurements of the Heusler alloy NiMnSb, in combination with other techniques, we show that a dramatic increase in the Mn and Ni moments occurs below a "crossover" transition temperature of about 80-100 K. This phase transition is well below the Curie temperature of NiMnSb (∼730 K). While the spin polarization near the Fermi level, from spin-polarized inverse photoemission, remains very high for k=0, it is unlikely that NiMnSb is a half-metallic ferromagnet near room temperature.
Publication Source (Journal or Book title)
Physical Review B - Condensed Matter and Materials Physics
First Page
0524091
Last Page
0524094
Recommended Citation
Borca, C., Komesu, T., Jeong, H., Dowben, P., Ristoiu, D., Hordequin, C., Nozières, J., Pierre, J., Stadler, S., & Idzerda, Y. (2001). Evidence for temperature dependent moments ordering in ferromagnetic NiMnSb(100). Physical Review B - Condensed Matter and Materials Physics, 64 (5), 0524091-0524094. https://doi.org/10.1103/PhysRevB.64.052409