A three-dimensional mapping of the Fermi surface (FS) of the heavy-fermion antiferromagnetic system CeIn3 in the paramagnetic phase was determined via measurements of the angular correlation of the electron-positron annihilation radiation for five crystal orientations. The two equivolume FS sheets observed agree with the predictions of our band-structure calculations regarding the Ce 4f electrons as fully localized. Moreover, a comparison of our results with the de Haas-van Alphen signals observed in the antiferromagnetic phase suggests that the f electrons retain the local atomic character in the magnetically ordered phase.
|Titolo:||Fermi-surface topology of the heavy-fermion antiferromagnetic superconductor CeIn3|
|Data di pubblicazione:||1-set-2003|
|Appare nelle tipologie:||1.1 Articolo in rivista|