Crystal field splitting in Srn+1IrnO3n+1 (n=1,2) iridates probed by x-ray Raman spectroscopy

@article{ ISI:000344011800002,
Author = {Sala, M. Moretti and Rossi, M. and Al-Zein, A. and Boseggia, S. and
   Hunter, E. C. and Perry, R. S. and Prabhakaran, D. and Boothroyd, A. T.
   and Brookes, N. B. and McMorrow, D. F. and Monaco, G. and Krisch, M.},
Title = {{Crystal field splitting in Srn+1IrnO3n+1 (n=1,2) iridates probed by
   x-ray Raman spectroscopy}},
Journal = {{PHYSICAL REVIEW B}},
Year = {{2014}},
Volume = {{90}},
Number = {{8}},
Month = {{AUG 20}},
Abstract = {{Nonresonant Raman spectroscopy in the hard x-ray regime has been used to
   explore the electronic structure of the first two members of the
   Ruddlesden-Popper series Srn+1IrnO3n+1 of iridates. By tuning the photon
   energy transfer around 530 eV, we have been able to explore the oxygen
   K-near-edge structure with bulk sensitivity. The angular dependence of
   the spectra has been exploited to assign features in the 528-535 eV
   energy range to specific transitions involving the Ir 5d orbitals. This
   has allowed us to extract reliable values for both the t(2g)-e(g)
   splitting arising from the cubic component of the crystal field (10Dq),
   in addition to the splitting of the e(g) orbitals due to tetragonal
   distortions. The values we obtain are (3.8, 1.6) eV and (3.55, 1.9) eV
   for Sr2IrO4 and Sr3Ir2O7, respectively.}},
Publisher = {{AMER PHYSICAL SOC}},
Address = {{ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA}},
Type = {{Article}},
Language = {{English}},
Affiliation = {{Sala, MM (Corresponding Author), European Synchrotron Radiat Facil, CS 40220, F-38043 Grenoble 9, France.
   Sala, M. Moretti; Rossi, M.; Al-Zein, A.; Brookes, N. B.; Krisch, M., European Synchrotron Radiat Facil, F-38043 Grenoble 9, France.
   Boseggia, S.; Perry, R. S.; McMorrow, D. F., UCL, London Ctr Nanotechnol, London WC1E 6BT, England.
   Boseggia, S.; Perry, R. S.; McMorrow, D. F., UCL, Dept Phys & Astron, London WC1E 6BT, England.
   Boseggia, S., Diamond Light Source Ltd, Didcot OX11 0DE, Oxon, England.
   Hunter, E. C., Univ Edinburgh, Sch Phys & Astron, Edinburgh EH9 2TT, Midlothian, Scotland.
   Prabhakaran, D.; Boothroyd, A. T., Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England.
   Monaco, G., Univ Trento, Dipartimento Fis, I-38123 Povo, TN, Italy.}},
DOI = {{10.1103/PhysRevB.90.085126}},
Article-Number = {{085126}},
ISSN = {{1098-0121}},
EISSN = {{1550-235X}},
Keywords-Plus = {{ELECTRONIC STATES; ABSORPTION; SR2IRO4}},
Research-Areas = {{Materials Science; Physics}},
Web-of-Science-Categories  = {{Materials Science, Multidisciplinary; Physics, Applied; Physics,
   Condensed Matter}},
Author-Email = {{marco.moretti@esrf.fr}},
ResearcherID-Numbers = {{McMorrow, Desmond Francis/M-9036-2019
   Brookes, Nicholas B/C-6718-2019
   Moretti, Marco/AAF-9255-2019
   Sala, Marco Moretti/H-1034-2014
   Monaco, Giulio/AAW-4387-2020
   Zein, Ali Al/F-4393-2019
   Krisch, Michael H/U-5662-2018
   }},
ORCID-Numbers = {{McMorrow, Desmond Francis/0000-0002-4947-7788
   Brookes, Nicholas B/0000-0002-1342-9530
   Moretti, Marco/0000-0002-9744-9976
   Sala, Marco Moretti/0000-0002-9744-9976
   Monaco, Giulio/0000-0003-2497-6422
   Krisch, Michael H/0000-0001-7423-1715
   Giles, Emily/0000-0001-9880-1102
   Rossi, Matteo/0000-0002-4254-0713}},
Funding-Acknowledgement = {{Engineering and Physical Sciences Research CouncilEngineering &
   Physical Sciences Research Council (EPSRC) {[}EP/J016713/1, 1268395,
   EP/J017124/1, EP/G007357/1] Funding Source: researchfish}},
Number-of-Cited-References = {{42}},
Times-Cited = {{17}},
Usage-Count-Last-180-days = {{1}},
Usage-Count-Since-2013 = {{70}},
Journal-ISO = {{Phys. Rev. B}},
Doc-Delivery-Number = {{AS1BO}},
Unique-ID = {{ISI:000344011800002}},
DA = {{2020-12-22}},
}