Identification of Quadrupolar Excitation Channels at the {ital L}{sub 3} Edge of Rare-Earth Compounds

Journal Article · Sat Nov 01 00:00:00 EST 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.79.3775· OSTI ID:554008

Bartolome, F; Tonnerre, J M; Seve, L; Raoux, D ^[1]; Chaboy, J; Garcia, L M ^[2]; Krisch, M ^[3]; Kao, C C ^[4]

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1. Laboratoire de Cristallographie, CNRS, B.P. 166, 38042 Grenoble (France)
2. Instituto de Ciencia de Materiales de Aragon, 50009 Zaragoza (Spain)
3. European Synchrotron Radiation Facility, B.P. 220, 38043 Grenoble Cedex (France)
4. National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973 (United States)

Resonant inelastic x-ray scattering spectra are recorded at the L{sub 3} absorption edge of rare-earth ions in R{sub 2}Fe{sub 14}B . In all cases, weak resonances are observed at energies below the dipolar white line resonance, originating from 2p{r_arrow}4f quadrupolar excitations. Their energy position is in excellent agreement with that of preedge features in the x-ray magnetic circular dichroism (XMCD) spectra of the same samples. Our results therefore evidence the systematic appearance of quadrupolar excitation channels and the importance of their inclusion in the correct interpretation of the XMCD at the L{sub 3} edges of rare-earth systems. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 554008
• Journal Information: Physical Review Letters, Vol. 79, Issue 19; Other Information: PBD: Nov 1997
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
RARE EARTH ALLOYS
EXCITATION
IRON ALLOYS
BORON ALLOYS
SAMARIUM ALLOYS
GADOLINIUM ALLOYS
TERBIUM ALLOYS
DYSPROSIUM ALLOYS
HOLMIUM ALLOYS
THORIUM ALLOYS
INTERMETALLIC COMPOUNDS
ABSORPTION SPECTRA
X-RAY DIFFRACTION
INELASTIC SCATTERING
QUADRUPOLAR CONFIGURATIONS
SYNCHROTRON RADIATION SOURCES