by Minola, M., Lu, Y., Peng, Y. Y., Dellea, G., Gretarsson, H., Haverkort, M. W., Ding, Y., Sun, X., Zhou, X. J., Peets, D. C., Chauviere, L., Dosanjh, P., Bonn, D. A., Liang, R., Damascelli, A., Dantz, M., Lu, X., Schmitt, T. and Braicovich, L., Ghiringhelli, G., Keimer, B. and Le Tacon, M.
Abstract:
Spin excitations in the overdoped high temperature superconductors Tl2Ba2CuO6+delta and (Bi,Pb)(2)(Sr,La)(2)CuO6+delta were investigated by resonant inelastic x-ray scattering (RIXS) as functions of doping and detuning of the incoming photon energy above the Cu-L-3 absorption peak. The RIXS spectra at optimal doping are dominated by a paramagnon feature with peak energy independent of photon energy, similar to prior results on underdoped cuprates. Beyond optimal doping, the RIXS data indicate a sharp crossover to a regime with a strong contribution from incoherent particle-hole excitations whose maximum shows a fluorescencelike shift upon detuning. The spectra of both compound families are closely similar, and their salient features are reproduced by exact-diagonalization calculations of the single-band Hubbard model on a finite cluster. The results are discussed in the light of recent transport experiments indicating a quantum phase transition near optimal doping.
Reference:
Crossover from Collective to Incoherent Spin Excitations in Superconducting Cuprates Probed by Detuned Resonant Inelastic X-Ray Scattering (Minola, M., Lu, Y., Peng, Y. Y., Dellea, G., Gretarsson, H., Haverkort, M. W., Ding, Y., Sun, X., Zhou, X. J., Peets, D. C., Chauviere, L., Dosanjh, P., Bonn, D. A., Liang, R., Damascelli, A., Dantz, M., Lu, X., Schmitt, T. and Braicovich, L., Ghiringhelli, G., Keimer, B. and Le Tacon, M.), In PHYSICAL REVIEW LETTERS, AMER PHYSICAL SOC, volume 119, 2017.
Bibtex Entry:
@article{ ISI:000408705200018,
Author = {Minola, M. and Lu, Y. and Peng, Y. Y. and Dellea, G. and Gretarsson, H.
   and Haverkort, M. W. and Ding, Y. and Sun, X. and Zhou, X. J. and Peets,
   D. C. and Chauviere, L. and Dosanjh, P. and Bonn, D. A. and Liang, R.
   and Damascelli, A. and Dantz, M. and Lu, X. and Schmitt, T. and
   Braicovich, L. and Ghiringhelli, G. and Keimer, B. and Le Tacon, M.},
Title = {{Crossover from Collective to Incoherent Spin Excitations in
   Superconducting Cuprates Probed by Detuned Resonant Inelastic X-Ray
   Scattering}},
Journal = {{PHYSICAL REVIEW LETTERS}},
Year = {{2017}},
Volume = {{119}},
Number = {{9}},
Month = {{AUG 31}},
Abstract = {{Spin excitations in the overdoped high temperature superconductors
   Tl2Ba2CuO6+delta and (Bi,Pb)(2)(Sr,La)(2)CuO6+delta were investigated by
   resonant inelastic x-ray scattering (RIXS) as functions of doping and
   detuning of the incoming photon energy above the Cu-L-3 absorption peak.
   The RIXS spectra at optimal doping are dominated by a paramagnon feature
   with peak energy independent of photon energy, similar to prior results
   on underdoped cuprates. Beyond optimal doping, the RIXS data indicate a
   sharp crossover to a regime with a strong contribution from incoherent
   particle-hole excitations whose maximum shows a fluorescencelike shift
   upon detuning. The spectra of both compound families are closely
   similar, and their salient features are reproduced by
   exact-diagonalization calculations of the single-band Hubbard model on a
   finite cluster. The results are discussed in the light of recent
   transport experiments indicating a quantum phase transition near optimal
   doping.}},
Publisher = {{AMER PHYSICAL SOC}},
Address = {{ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA}},
Type = {{Article}},
Language = {{English}},
Affiliation = {{Minola, M (Corresponding Author), Max Planck Inst Festkorperforsch, Heisenbergstr 1, D-70569 Stuttgart, Germany.
   Minola, M.; Lu, Y.; Gretarsson, H.; Chauviere, L.; Keimer, B.; Le Tacon, M., Max Planck Inst Festkorperforsch, Heisenbergstr 1, D-70569 Stuttgart, Germany.
   Peng, Y. Y.; Dellea, G., CNR, SPIN, CNISM, I-20133 Milan, Italy.
   Peng, Y. Y.; Dellea, G., Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy.
   Haverkort, M. W., Max Planck Inst Chem Phys Fester Stoffe, Nothnitzer Str 40, D-01187 Dresden, Germany.
   Haverkort, M. W., Heidelberg Univ, Inst Theoret Phys, Philosophenweg 19, D-69120 Heidelberg, Germany.
   Ding, Y.; Sun, X.; Zhou, X. J., Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
   Ding, Y.; Sun, X.; Zhou, X. J., Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
   Peets, D. C.; Chauviere, L.; Dosanjh, P.; Bonn, D. A.; Liang, R.; Damascelli, A., Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada.
   Peets, D. C.; Chauviere, L.; Dosanjh, P.; Bonn, D. A.; Liang, R.; Damascelli, A., Univ British Columbia, Quantum Matter Inst, Vancouver, BC V6T 1Z4, Canada.
   Dantz, M.; Lu, X.; Schmitt, T., Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland.
   Le Tacon, M., Karlsruhe Inst Technol, Inst Festkorperphys, Hermann v Helmoltz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany.
   Peets, D. C., Fudan Univ, Adv Mat Lab, Shanghai 200438, Peoples R China.}},
DOI = {{10.1103/PhysRevLett.119.097001}},
Article-Number = {{097001}},
ISSN = {{0031-9007}},
EISSN = {{1079-7114}},
Keywords-Plus = {{SWISS LIGHT-SOURCE; BEAMLINE; ADRESS}},
Research-Areas = {{Physics}},
Web-of-Science-Categories  = {{Physics, Multidisciplinary}},
Author-Email = {{m.minola@fkf.mpg.de}},
ResearcherID-Numbers = {{peng, yingying/K-1805-2015
   Ghiringhelli, Giacomo/D-1159-2014
   , Le Tacon Matthieu/D-8023-2011
   Haverkort, Maurits W./D-2319-2009
   Peets, Darren C./T-5090-2017
   Lu, Xingye/Q-4184-2019
   damascelli, andrea/P-6329-2014
   Lu, Yi/G-9881-2014
   Schmitt, Thorsten/A-7025-2010
   }},
ORCID-Numbers = {{peng, yingying/0000-0002-2657-3590
   Ghiringhelli, Giacomo/0000-0003-0867-7748
   , Le Tacon Matthieu/0000-0002-5838-3724
   Haverkort, Maurits W./0000-0002-7216-3146
   Peets, Darren C./0000-0002-5456-574X
   Lu, Xingye/0000-0002-0409-1240
   damascelli, andrea/0000-0001-9895-2226
   Lu, Yi/0000-0001-9445-641X
   Minola, Matteo/0000-0003-4084-0664
   Braicovich, Lucio/0000-0001-6548-9140}},
Funding-Acknowledgement = {{Alexander von Humboldt FoundationAlexander von Humboldt Foundation;
   PIK-POLARIX project of the Italian Ministry of Research (MIUR); Swiss
   National Science Foundation through Sinergia network Mott Physics Beyond
   the Heisenberg (MPBH); D-A-CH program (SNSF) {[}200021L 141325];
   European CommunityEuropean Community (EC) {[}290605]; Max Planck-UBC
   Centre for Quantum Materials; Killam; A. P. SloanAlfred P. Sloan
   Foundation; A. von Humboldt; NSERCNatural Sciences and Engineering
   Research Council of Canada; Canada Research Chairs ProgramCanada
   Research Chairs; CFICanada Foundation for Innovation; CIFAR Quantum
   Materials}},
Funding-Text = {{The experiments were carried out at the ADRESS beam line using the SAXES
   instrument jointly built by the Paul Scherrer Institut (Villigen,
   Switzerland), Politecnico di Milano (Italy), and Ecole polytechnique
   federale de Lausanne (Switzerland). M. M. was supported by the Alexander
   von Humboldt Foundation. Y. Y. P., G. D., and G. G. were supported by
   the PIK-POLARIX project of the Italian Ministry of Research (MIUR). Part
   of this research has been funded by the Swiss National Science
   Foundation through the Sinergia network Mott Physics Beyond the
   Heisenberg (MPBH) model and and the D-A-CH program (SNSF Research Grant
   No. 200021L 141325). The research leading to these results Framework
   Program (FP7/2007-2013) under Grant Agreement No. 290605 (COFUND: PSI-as
   also received funding from the European Community's Seventh FrFELLOW).
   The work at UBC was supported by the Max Planck-UBC Centre for Quantum
   Materials, the Killam, A. P. Sloan, A. von Humboldt, and NSERC's Steacie
   Memorial Fellowships (A. D.), the Canada Research Chairs Program (A.
   D.), NSERC, CFI, and CIFAR Quantum Materials.}},
Number-of-Cited-References = {{35}},
Times-Cited = {{13}},
Usage-Count-Last-180-days = {{5}},
Usage-Count-Since-2013 = {{64}},
Journal-ISO = {{Phys. Rev. Lett.}},
Doc-Delivery-Number = {{FF2CJ}},
Unique-ID = {{ISI:000408705200018}},
OA = {{Green Published}},
DA = {{2020-12-22}},
}

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