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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