Photon energy dependence of the perpendicular geometry magnetic circular dichroism in the 2p3p3p resonant photoemission from Ni

@article{ ISI:000085990900017,
Author = {Finazzi, M and Ghiringhelli, G and Tjernberg, O and Brookes, NB},
Title = {{Photon energy dependence of the perpendicular geometry magnetic circular
   dichroism in the 2p3p3p resonant photoemission from Ni}},
Journal = {{JOURNAL OF PHYSICS-CONDENSED MATTER}},
Year = {{2000}},
Volume = {{12}},
Number = {{9}},
Pages = {{2123-2133}},
Month = {{MAR 6}},
Abstract = {{The magnetic circular dichroism in the perpendicular geometry of the
   resonant 2p3p3p photoemission (PE) spectroscopy has been investigated in
   metallic Ni as a function of the photon energy across the Ni Lj
   absorption edge. Within the experimental error bars, the photon energy
   dependence of the PE dichroism signal is the same as the one shown by
   the magnetic circular dichroism of the corresponding x-ray absorption
   (XMCD), obtained in the collinear geometry. This is attributed to the
   fact that, in metal Ni, the orbital {[}L-z] and dipolar {[}T-z] moments
   are smaller than the spin angular moment {[}S-z]. The latter is the
   dominating term in both the expressions that give the integrated values
   of the PE dichroism or XMCD intensities, Although the respective photon
   energy dependence is very similar, the normalized PE dichroism intensity
   is a factor similar to 5.6 smaller than the normalized XMCD signal,
   while only a factor similar to 1.6 is expected from theoretical
   considerations. This factor is observed even below the L-3 threshold,
   thus we exclude that the small intensity of the perpendicular geometry
   dichroism in the Ni 2p3p3p resonant photoemission is due to fast
   relaxation processes in the intermediate state.}},
Publisher = {{IOP PUBLISHING LTD}},
Address = {{DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND}},
Type = {{Article}},
Language = {{English}},
Affiliation = {{Finazzi, M (Corresponding Author), INFM, TASC, Elettra Synchrotron Light Source, SS 14-Km 163-5, I-34012 Trieste, Italy.
   European Synchrotron Radiat Facil, F-38043 Grenoble, France.}},
DOI = {{10.1088/0953-8984/12/9/315}},
ISSN = {{0953-8984}},
Keywords-Plus = {{X-RAY-ABSORPTION; CORE-HOLE POLARIZATION; SUM-RULES; HELICAL UNDULATOR;
   SPECTROSCOPY; SPECTRA; HELIOS}},
Research-Areas = {{Physics}},
Web-of-Science-Categories  = {{Physics, Condensed Matter}},
ResearcherID-Numbers = {{Finazzi, Marco/M-7401-2015
   Ghiringhelli, Giacomo/D-1159-2014
   Brookes, Nicholas B/C-6718-2019
   }},
ORCID-Numbers = {{Finazzi, Marco/0000-0002-9197-3654
   Ghiringhelli, Giacomo/0000-0003-0867-7748
   Brookes, Nicholas B/0000-0002-1342-9530
   Tjernberg, Oscar/0000-0001-8669-6886}},
Number-of-Cited-References = {{27}},
Times-Cited = {{3}},
Usage-Count-Last-180-days = {{1}},
Usage-Count-Since-2013 = {{2}},
Journal-ISO = {{J. Phys.-Condes. Matter}},
Doc-Delivery-Number = {{295WM}},
Unique-ID = {{ISI:000085990900017}},
DA = {{2020-12-22}},
}