by Bisogni, V., Sala, M. Moretti, Bendounan, A., Brookes, N. B., Ghiringhelli, G. and Braicovich, L.
Abstract:
We present RIXS data at the O K edge from La2-xSrxCuO4 vs doping between x = 0.10 and x = 0.22 with attention to the magnetic excitations in the mid-infrared region. The sampling done by RIXS is the same as in the undoped cuprates provided the excitation is at the first prepeak induced by doping. Note that this excitation energy is about 1.5 eV lower than that needed to see bimagnons in the parent compound. This approach allows the study of the upper region of the bimagnon continuum around 450 meV within about one third of the Brillouin zone around Gamma. The results show the presence of damped bimagnons and of higher even order spin excitations with almost constant spectral weight at all the dopings explored here. The implications for high-T-c studies are briefly addressed.
Reference:
Bimagnon studies in cuprates with resonant inelastic x-ray scattering at the O K edge. II. Doping effect in La2-xSrxCuO4 (Bisogni, V., Sala, M. Moretti, Bendounan, A., Brookes, N. B., Ghiringhelli, G. and Braicovich, L.), In PHYSICAL REVIEW B, AMER PHYSICAL SOC, volume 85, 2012.
Bibtex Entry:
@article{ ISI:000305604600008,
Author = {Bisogni, V. and Sala, M. Moretti and Bendounan, A. and Brookes, N. B.
   and Ghiringhelli, G. and Braicovich, L.},
Title = {{Bimagnon studies in cuprates with resonant inelastic x-ray scattering at
   the O K edge. II. Doping effect in La2-xSrxCuO4}},
Journal = {{PHYSICAL REVIEW B}},
Year = {{2012}},
Volume = {{85}},
Number = {{21}},
Month = {{JUN 25}},
Abstract = {{We present RIXS data at the O K edge from La2-xSrxCuO4 vs doping between
   x = 0.10 and x = 0.22 with attention to the magnetic excitations in the
   mid-infrared region. The sampling done by RIXS is the same as in the
   undoped cuprates provided the excitation is at the first prepeak induced
   by doping. Note that this excitation energy is about 1.5 eV lower than
   that needed to see bimagnons in the parent compound. This approach
   allows the study of the upper region of the bimagnon continuum around
   450 meV within about one third of the Brillouin zone around Gamma. The
   results show the presence of damped bimagnons and of higher even order
   spin excitations with almost constant spectral weight at all the dopings
   explored here. The implications for high-T-c studies are briefly
   addressed.}},
Publisher = {{AMER PHYSICAL SOC}},
Address = {{ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA}},
Type = {{Article}},
Language = {{English}},
Affiliation = {{Bisogni, V (Corresponding Author), Leibniz Inst Solid State & Mat Res IFW Dresden, POB 270116, D-01171 Dresden, Germany.
   Bisogni, V.; Brookes, N. B., European Synchrotron Radiat Facil, F-38043 Grenoble, France.
   Bisogni, V., Leibniz Inst Solid State & Mat Res IFW Dresden, D-01069 Dresden, Germany.
   Sala, M. Moretti; Ghiringhelli, G.; Braicovich, L., Politecn Milan, CNR SPIN, Dipartimento Fis, I-20133 Milan, Italy.
   Bendounan, A., Swiss Fed Inst Technol, Paul Scherrer Inst, CH-5232 Villigen, Switzerland.
   Bendounan, A., EPF Lausanne, CH-5232 Villigen, Switzerland.}},
DOI = {{10.1103/PhysRevB.85.214528}},
Article-Number = {{214528}},
ISSN = {{2469-9950}},
EISSN = {{2469-9969}},
Research-Areas = {{Materials Science; Physics}},
Web-of-Science-Categories  = {{Materials Science, Multidisciplinary; Physics, Applied; Physics,
   Condensed Matter}},
ResearcherID-Numbers = {{Ghiringhelli, Giacomo/D-1159-2014
   Moretti, Marco/AAF-9255-2019
   Sala, Marco Moretti/H-1034-2014
   Brookes, Nicholas B/C-6718-2019
   }},
ORCID-Numbers = {{Ghiringhelli, Giacomo/0000-0003-0867-7748
   Moretti, Marco/0000-0002-9744-9976
   Sala, Marco Moretti/0000-0002-9744-9976
   Brookes, Nicholas B/0000-0002-1342-9530
   Braicovich, Lucio/0000-0001-6548-9140}},
Funding-Acknowledgement = {{Deutscher Akademischer Austausch DienstDeutscher Akademischer Austausch
   Dienst (DAAD)}},
Funding-Text = {{The work took enormous advantage from numerous stimulating and
   productive discussions with many colleagues and in particular with L. P.
   J. Ament, J. van den Brink, B. Buchner, J. Geck, and J. Mesot. Moreover
   we are grateful to J. Mesot for having allowed us to use the bulk
   samples of LSCO. V.B. acknowledges the financial support from Deutscher
   Akademischer Austausch Dienst.}},
Number-of-Cited-References = {{13}},
Times-Cited = {{15}},
Usage-Count-Last-180-days = {{0}},
Usage-Count-Since-2013 = {{14}},
Journal-ISO = {{Phys. Rev. B}},
Doc-Delivery-Number = {{963FD}},
Unique-ID = {{ISI:000305604600008}},
OA = {{Green Published}},
DA = {{2020-12-22}},
}

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