Electronic structure of CeRhIn5 and CeIrIn5

Gamża, M.; Ślebarski, A.; Deniszczyk, J.

Artykuł - szczegóły

Tytuł artykułu

Electronic structure of CeRhIn5 and CeIrIn5

Autorzy

Gamża M. , Ślebarski A. , Deniszczyk J.

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Abstrakty

We have performed Full Potential Linearized Augmented Plane-Wave (FP-LAPW) calculations of the layered cerium compounds CeRhIn5 and CeIrIn5, which belong to the new, intensively investigated family of heavy fermion (HF) materials. The ground states of this compounds can be tuned between antiferromagnetism (AFM) and superconductivity (SC) by external pressure or doping. We have carried out x-ray photoelectron spectroscopy (XPS) experiments to compare measured valence band spectra with theoretical calculations. We also analyse the XPS 3d Ce spectra, to estimate the occupation of the Ce 4f shell and the hybridization between 4f and conduction electrons. We have found and discussed an influence of the lattice parameter a and the d-f interatomic hybridization effect on the ground state properties in the series of CeMIn5 compounds.

Słowa kluczowe

heavy fermions electronic structure XPS superconductivity X-ray photoelectron spectroscopy

fermiony ciężkie rentgenowska spektroskopia fotoelektronowa struktura elektronowa nadprzewodność

Wydawca

De Gruyter

Czasopismo

Materials Science Poland

Rocznik

2006

Tom

Vol. 24, No. 3

Strony

569--576

Opis fizyczny

Bibliogr.24 poz.

Twórcy

autor

Gamża M.

autor

Ślebarski A.

autor

Deniszczyk J.

Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, monikag3@o2.pl

Bibliografia

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