Magnetic Circular Dichroism in Resonant Raman Scattering in the Perpendicular Geometry at the L edge of 3d Transition Metal Systems
- INFM, Istituto Nazionale di Fisica della Materia (Italy)
- Dipartimento di Fisica del Politecnico, P. L. da Vinci 32, 20133 Milano (Italy)
- Daresbury Laboratory, Warrington WA4 4AD (United Kingdom)
- European Synchrotron Radiation Facility, BP 220, 38043 Grenoble (France)
- Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 (United States)
- D. I. Mendeleyev Institute for Metrology, 19 Moskovsky Prospekt, 198005 Skt. Petersburg (Russia)
We measured circular dichroism in resonant x-ray scattering 3d{sup n}{r_arrow}2p{sup 5}3d{sup n+1}{r_arrow}3s{sup 1}3d{sup n+1} with incidence perpendicular to the magnetization where the absorption dichroism vanishes. The advantages of photon scattering over other techniques make it possible to study a wide range of materials. The Ni L{sub 3} dichroism in NiFe{sub 2}O {sub 4} is (28{plus_minus}5){percent} in agreement with a localized model. In the metal Co the dichroism is reduced to (10.4{plus_minus}1){percent} (L{sub 3}) and (6.8{plus_minus}1.5){percent} (7.5 eV above L{sub 3} ), indicating a large sensitivity to the nature of the valence states despite the fact that this spectroscopy is based on inner shell transitions. {copyright} {ital 1999} {ital The American Physical Society }
- OSTI ID:
- 324929
- Journal Information:
- Physical Review Letters, Vol. 82, Issue 7; Other Information: PBD: Feb 1999
- Country of Publication:
- United States
- Language:
- English
Similar Records
First-principles analysis of X-ray magnetic circular dichroism for transition metal complex oxides
Interpretation of x-ray magnetic circular dichroism and x-ray absorption near-edge structure in Ni