by Rossi, Matteo, Arpaia, Riccardo, Fumagalli, Roberto, Sala, Marco Moretti, Betto, Davide, Kummer, Kurt, De Luca, Gabriella M., van den Brink, Jeroen, Salluzzo, Marco, Brookes, Nicholas B., Braicovich, Lucio and Ghiringhelli, Giacomo
Abstract:
We provide a novel experimental method to quantitatively estimate the electron-phonon coupling and its momentum dependence from resonant inelastic x-ray scattering (RIXS) spectra based on the detuning of the incident photon energy away from an absorption resonance. We apply it to the cuprate parent compound NdBa2Cu3O6 and find that the electronic coupling to the oxygen half-breathing phonon branch is strongest at the Brillouin zone boundary, where it amounts to similar to 0.17 eV, in agreement with previous studies. In principle, this method is applicable to any absorption resonance suitable for RIXS measurements and will help to define the contribution of lattice vibrations to the peculiar properties of quantum materials.
Reference:
Experimental Determination of Momentum-Resolved Electron-Phonon Coupling (Rossi, Matteo, Arpaia, Riccardo, Fumagalli, Roberto, Sala, Marco Moretti, Betto, Davide, Kummer, Kurt, De Luca, Gabriella M., van den Brink, Jeroen, Salluzzo, Marco, Brookes, Nicholas B., Braicovich, Lucio and Ghiringhelli, Giacomo), In PHYSICAL REVIEW LETTERS, AMER PHYSICAL SOC, volume 123, 2019.
Bibtex Entry:
@article{ ISI:000474380500002,
Author = {Rossi, Matteo and Arpaia, Riccardo and Fumagalli, Roberto and Sala,
   Marco Moretti and Betto, Davide and Kummer, Kurt and De Luca, Gabriella
   M. and van den Brink, Jeroen and Salluzzo, Marco and Brookes, Nicholas
   B. and Braicovich, Lucio and Ghiringhelli, Giacomo},
Title = {{Experimental Determination of Momentum-Resolved Electron-Phonon Coupling}},
Journal = {{PHYSICAL REVIEW LETTERS}},
Year = {{2019}},
Volume = {{123}},
Number = {{2}},
Month = {{JUL 8}},
Abstract = {{We provide a novel experimental method to quantitatively estimate the
   electron-phonon coupling and its momentum dependence from resonant
   inelastic x-ray scattering (RIXS) spectra based on the detuning of the
   incident photon energy away from an absorption resonance. We apply it to
   the cuprate parent compound NdBa2Cu3O6 and find that the electronic
   coupling to the oxygen half-breathing phonon branch is strongest at the
   Brillouin zone boundary, where it amounts to similar to 0.17 eV, in
   agreement with previous studies. In principle, this method is applicable
   to any absorption resonance suitable for RIXS measurements and will help
   to define the contribution of lattice vibrations to the peculiar
   properties of quantum materials.}},
Publisher = {{AMER PHYSICAL SOC}},
Address = {{ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA}},
Type = {{Article}},
Language = {{English}},
Affiliation = {{Rossi, M (Corresponding Author), Politecn Milan, Dipartimento Fis, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy.
   Rossi, Matteo; Arpaia, Riccardo; Fumagalli, Roberto; Sala, Marco Moretti; Braicovich, Lucio; Ghiringhelli, Giacomo, Politecn Milan, Dipartimento Fis, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy.
   Arpaia, Riccardo, Chalmers Univ Technol, Dept Microtechnol & Nanosci, SE-41296 Gothenburg, Sweden.
   Betto, Davide; Kummer, Kurt; Brookes, Nicholas B.; Braicovich, Lucio, ESRF European Synchrotron, 71 Ave Martyrs,CS 40220, F-38043 Grenoble, France.
   De Luca, Gabriella M., Univ Napoli Federico II, Dipartimento Fis E Pancini, Complesso Monte St Angelo Via Cinthia, I-80126 Naples, Italy.
   De Luca, Gabriella M.; Salluzzo, Marco, CNR, SPIN, Complesso Monte St Angelo Via Cinthia, I-80126 Naples, Italy.
   van den Brink, Jeroen, IFW Dresden, Inst Theoret Solid State Phys, Helmholtzstr 20, D-01069 Dresden, Germany.
   van den Brink, Jeroen, Tech Univ Dresden, Dept Phys, D-01062 Dresden, Germany.
   Ghiringhelli, Giacomo, Politecn Milan, SPIN, Dipartimento Fis, CNR, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy.
   Betto, Davide, Max Planck Inst Festkorperforsch, Heisenbergstr 1, D-70569 Stuttgart, Germany.}},
DOI = {{10.1103/PhysRevLett.123.027001}},
Article-Number = {{027001}},
ISSN = {{0031-9007}},
EISSN = {{1079-7114}},
Keywords-Plus = {{X-RAY-SCATTERING; RAMAN-SCATTERING; CUPRATE; SUPERCONDUCTIVITY;
   COLLAPSE; SYMMETRY; SPECTRA; GLUE}},
Research-Areas = {{Physics}},
Web-of-Science-Categories  = {{Physics, Multidisciplinary}},
Author-Email = {{matteo1.rossi@polimi.it
   giacomo.ghiringhelli@polimi.it}},
ResearcherID-Numbers = {{van den Brink, Jeroen/Y-3931-2019
   Moretti, Marco/AAF-9255-2019
   Arpaia, Riccardo/Y-1247-2019
   Ghiringhelli, Giacomo/D-1159-2014
   }},
ORCID-Numbers = {{Moretti, Marco/0000-0002-9744-9976
   Arpaia, Riccardo/0000-0003-4687-2376
   Ghiringhelli, Giacomo/0000-0003-0867-7748
   Rossi, Matteo/0000-0002-4254-0713}},
Funding-Acknowledgement = {{ERC-P-ReXS project of the Fondazione CARIPLOFondazione Cariplo
   {[}2016-0790]; Regione Lombardia, in Italy; Swedish Research Council
   (VR)Swedish Research Council {[}2017-00382]}},
Funding-Text = {{The authors are grateful to K. Gilmore, M. Krisch, and G. Monaco for
   helpful discussions. RIXS data were collected at the beam line ID32 of
   the ESRF using the ERIXS spectrometer jointly designed by the ESRF and
   the Politecnico di Milano. This work was supported by the ERC-P-ReXS
   project (2016-0790) of the Fondazione CARIPLO and Regione Lombardia, in
   Italy. R. A. is supported by the Swedish Research Council (VR) under the
   project ``Evolution of nanoscale charge order in superconducting YBCO
   nanostructures (2017-00382).{''}}},
Number-of-Cited-References = {{68}},
Times-Cited = {{9}},
Usage-Count-Last-180-days = {{8}},
Usage-Count-Since-2013 = {{39}},
Journal-ISO = {{Phys. Rev. Lett.}},
Doc-Delivery-Number = {{IH3GE}},
Unique-ID = {{ISI:000474380500002}},
DA = {{2020-12-22}},
}

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