High pressure mössbauer studies of magnetic actinide systems

Autor: Potzel, W., Moser, J., Potzel, Ulrike, Litterst, F. J., Kalvius, G. M., Gal, J., Boge, M., Chappert, J., Spirlet, J.
Zdroj: Hyperfine Interactions; March 1987, Vol. 34 Issue: 1-4 p391-405, 15p
Abstrakt: Due to the wider radial extent of 5f electrons when compared to their 4f counterparts, intermetallics of the light actinides show a broad spectrum of magnetic properties ranging from the localized magnetism of the lanthanides to the itinerant magnetism often found in transition metal compounds. One parameter which strongly influences the magnetic character of the compound is the actinide-actinide separation which can experimentally be varied by the application of high pressure. The question of 5f electron delocalization will be reviewed with respect to Moesshauer high pressure data on NpCo2si2, NpAl2, NpOs2 and new results will be presented of NpAs. The connection of hyperfine parameters with results of X-ray diffraction studies will be discussed.
Databáze: Supplemental Index