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.

Fermi-surface topology of the heavy-fermion antiferromagnetic superconductor CeIn3

Ferro, G.;
2003

Abstract

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.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12079/1223
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