Quenching of atomiclike properties upon solid-state formation: Quantitative comparison between Co and Ni in ferrites studied by x-ray resonant Raman scattering at the L3 edge

@article{ ISI:000220813500065,
Author = {van der Laan, G and Ghiringhelli, G and Tagliaferri, A and Brookes, NB
   and Braicovich, L},
Title = {{Quenching of atomiclike properties upon solid-state formation:
   Quantitative comparison between Co and Ni in ferrites studied by x-ray
   resonant Raman scattering at the L3 edge}},
Journal = {{PHYSICAL REVIEW B}},
Year = {{2004}},
Volume = {{69}},
Number = {{10}},
Month = {{MAR}},
Abstract = {{We have measured the spin and orbital coupled multipole moments for the
   ground state of the divalent Co and Ni ions in the ferrites using the
   technique of integrated x-ray resonant Raman scattering (IRRS). This
   method exploits the sum rules characteristic of a second-order process
   which gives access to moments higher than those obtained from magnetic
   circular and linear dichroism in x-ray absorption. Moreover, IRRS is
   complementary to the latter techniques concerning the lower-order
   moments. The experimentally deduced values for the quadrupole and
   octupole moments are small in Ni ferrite but large in Co ferrite. Except
   for the spin moment, this difference between both ions is in contrast
   with the ground-state values given by the Hund's rule that gives the
   same absolute value for both isolated ions. The difference is due to the
   quenching of the spin-orbit interaction (its first-order contribution
   vanishes) in the octahedral crystal field for the Ni d(8) ion, which
   does not occur for the Co d(7) ion. We compare the experimental results
   with a cluster calculation that includes crystal field and hybridization
   effects, which gives the values of the orbital moment, the quadrupole
   and octupole moments for both ions. The present results show the extent
   to which the atomiclike properties are retained in the higher-order
   multipole moments. This can be used to assess the modification of the
   atomic behavior due to solid-state effects.}},
Publisher = {{AMER PHYSICAL SOC}},
Address = {{ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA}},
Type = {{Article}},
Language = {{English}},
Affiliation = {{van der Laan, G (Corresponding Author), SERC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England.
   SERC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England.
   Politecn Milan, Dipartimento Fis, INFM, I-20133 Milan, Italy.
   European Synchrotron Radiat Facil, F-38043 Grenoble, France.}},
DOI = {{10.1103/PhysRevB.69.104427}},
Article-Number = {{104427}},
ISSN = {{2469-9950}},
EISSN = {{2469-9969}},
Keywords-Plus = {{MAGNETIC CIRCULAR-DICHROISM; TRANSITION-METAL MONOXIDES; SUM-RULES;
   MAGNETOCRYSTALLINE ANISOTROPY; HOLE POLARIZATION; BAND-STRUCTURE;
   GROUND-STATE; ABSORPTION; SPECTRA; PHOTOEMISSION}},
Research-Areas = {{Materials Science; Physics}},
Web-of-Science-Categories  = {{Materials Science, Multidisciplinary; Physics, Applied; Physics,
   Condensed Matter}},
ResearcherID-Numbers = {{van der Laan, Gerrit/Q-1662-2015
   Brookes, Nicholas B/C-6718-2019
   Tagliaferri, Alberto/L-2903-2015
   Ghiringhelli, Giacomo/D-1159-2014
   }},
ORCID-Numbers = {{van der Laan, Gerrit/0000-0001-6852-2495
   Brookes, Nicholas B/0000-0002-1342-9530
   Tagliaferri, Alberto/0000-0001-8001-1786
   Ghiringhelli, Giacomo/0000-0003-0867-7748
   Braicovich, Lucio/0000-0001-6548-9140}},
Number-of-Cited-References = {{53}},
Times-Cited = {{9}},
Usage-Count-Last-180-days = {{0}},
Usage-Count-Since-2013 = {{7}},
Journal-ISO = {{Phys. Rev. B}},
Doc-Delivery-Number = {{812AX}},
Unique-ID = {{ISI:000220813500065}},
DA = {{2020-12-22}},
}