Direct Evidence of the Role of Hybridization in the X-Ray Magnetic Circular Dichroism of a-Ce
Files
Publication date
1995-12-18
Authors
Finazzi, M.
Groot, F.M.F. de
Dias, A.-M.
Kierren, B.
Bertran, F.
Sainctavit, Ph.
Kappler, J.-P.
Schulte, O.
Felsch, W.
Krill, G.
Editors
Advisors
Supervisors
DOI
Document Type
Article
Metadata
Show full item recordCollections
License
Abstract
We present an x-ray magnetic circular dichroism (XMCD) study of a [Ce(10 Å)/Fe(30 Å)] multilayer
performed at the Ce-M4,5 absorption edges. In this system the Ce-4f electrons are strongly hybridized
with the valence band. XMCD experiments show that they carry an ordered magnetic moment. The
differences of the shape of the XMCD signals of a typical g-like compound (CeCuSi) and of the Ce/
Fe multilayer highlight the role of hybridization in determining the ground state of cerium atoms in the
multilayer, which results in a mixing of J = 5/2 and J = 7/2 coupled states.