Loading…
Electronic and magnetic properties of heavy fermion CeCu4Al
The studies of the magnetic susceptibility, specific heat, electrical resistivity, x-ray photoemission spectra (XPS) and the band structure calculations for CeCu4Al are reported. CeCu4Al is paramagnetic and follows the Curie-Weiss law with mueff = 2.53 muB/f.u. and thetap = -10 K. The experimental v...
Saved in:
Published in: | Journal of physics. Condensed matter 2008-06, Vol.20 (25), p.255252-255252 (7) |
---|---|
Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | The studies of the magnetic susceptibility, specific heat, electrical resistivity, x-ray photoemission spectra (XPS) and the band structure calculations for CeCu4Al are reported. CeCu4Al is paramagnetic and follows the Curie-Weiss law with mueff = 2.53 muB/f.u. and thetap = -10 K. The experimental value of mueff is close to the calculated one for a free Ce3+ ion (2.54 muB), thus indicating the presence of well-localized magnetic moments carried by the stable Ce3+ ions. Below the Fermi energy the total density of states contains mainly the d states of Cu atoms, which hybridize with the Ce f electronic states. The analysis of the Ce 3d and 4d XPS spectra indicates the localized character of the Ce f states. The determined electronic specific heat coefficient gamma = 210 mJ K-2 mol-1 confirms the heavy fermion character of the CeCu4Al compounds. |
---|---|
ISSN: | 0953-8984 1361-648X |
DOI: | 10.1088/0953-8984/20/25/255252 |