by Chaix, L., Ghiringhelli, G., Peng, Y. Y., Hashimoto, M. and Moritz, B., Kummer, K., Brookes, N. B., He, Y., Chen, S. and Ishida, S., Yoshida, Y., Eisaki, H., Salluzzo, M. and Braicovich, L., Shen, Z. -X., Devereaux, T. P. and Lee, W. -S.
Abstract:
Experimental evidence on high-T-c cuprates reveals ubiquitous charge density wave (CDW) modulations(1-10), which coexist with superconductivity. Although the CDW had been predicted by theory(11-13), important questions remain about the extent to which the CDW influences lattice and charge degrees of freedom and its characteristics as functions of doping and temperature. These questions are intimately connected to the origin of the CDW and its relation to the mysterious cuprate pseudogap(10,14). Here, we use ultrahigh-resolution resonant inelastic X-ray scattering to reveal new CDW character in underdoped Bi2.2Sr1.8Ca0.8Dy0.2Cu2O8+delta . At low temperature, we observe dispersive excitations from an incommensurate CDW that induces anomalously enhanced phonon intensity, unseen using other techniques. Near the pseudogap temperature T*, the CDW persists, but the associated excitations significantly weaken with an indication of CDW wavevector shift. The dispersive CDW excitations, phonon anomaly, and analysis of the CDW wavevector provide a comprehensive momentum-space picture of complex CDW behaviour and point to a closer relationship with the pseudogap state.
Reference:
Dispersive charge density wave excitations in Bi2Sr2CaCu2O8+delta (Chaix, L., Ghiringhelli, G., Peng, Y. Y., Hashimoto, M. and Moritz, B., Kummer, K., Brookes, N. B., He, Y., Chen, S. and Ishida, S., Yoshida, Y., Eisaki, H., Salluzzo, M. and Braicovich, L., Shen, Z. -X., Devereaux, T. P. and Lee, W. -S.), In NATURE PHYSICS, NATURE PUBLISHING GROUP, volume 13, 2017.
Bibtex Entry:
@article{ ISI:000412181200014,
Author = {Chaix, L. and Ghiringhelli, G. and Peng, Y. Y. and Hashimoto, M. and
Moritz, B. and Kummer, K. and Brookes, N. B. and He, Y. and Chen, S. and
Ishida, S. and Yoshida, Y. and Eisaki, H. and Salluzzo, M. and
Braicovich, L. and Shen, Z. -X. and Devereaux, T. P. and Lee, W. -S.},
Title = {{Dispersive charge density wave excitations in Bi2Sr2CaCu2O8+delta}},
Journal = {{NATURE PHYSICS}},
Year = {{2017}},
Volume = {{13}},
Number = {{10}},
Pages = {{952+}},
Month = {{OCT}},
Abstract = {{Experimental evidence on high-T-c cuprates reveals ubiquitous charge
density wave (CDW) modulations(1-10), which coexist with
superconductivity. Although the CDW had been predicted by theory(11-13),
important questions remain about the extent to which the CDW influences
lattice and charge degrees of freedom and its characteristics as
functions of doping and temperature. These questions are intimately
connected to the origin of the CDW and its relation to the mysterious
cuprate pseudogap(10,14). Here, we use ultrahigh-resolution resonant
inelastic X-ray scattering to reveal new CDW character in underdoped
Bi2.2Sr1.8Ca0.8Dy0.2Cu2O8+delta . At low temperature, we observe
dispersive excitations from an incommensurate CDW that induces
anomalously enhanced phonon intensity, unseen using other techniques.
Near the pseudogap temperature T{*}, the CDW persists, but the
associated excitations significantly weaken with an indication of CDW
wavevector shift. The dispersive CDW excitations, phonon anomaly, and
analysis of the CDW wavevector provide a comprehensive momentum-space
picture of complex CDW behaviour and point to a closer relationship with
the pseudogap state.}},
Publisher = {{NATURE PUBLISHING GROUP}},
Address = {{MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND}},
Type = {{Article}},
Language = {{English}},
Affiliation = {{Shen, ZX; Devereaux, TP; Lee, WS (Corresponding Author), SLAC Natl Accelerator Lab, Stanford Inst Mat & Energy Sci, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA.
Shen, ZX; Devereaux, TP; Lee, WS (Corresponding Author), Stanford Univ, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA.
Shen, ZX; Devereaux, TP (Corresponding Author), Stanford Univ, Geballe Lab Adv Mat, Stanford, CA 94305 USA.
Chaix, L.; Moritz, B.; Shen, Z. -X.; Devereaux, T. P.; Lee, W. -S., SLAC Natl Accelerator Lab, Stanford Inst Mat & Energy Sci, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA.
Chaix, L.; Moritz, B.; Shen, Z. -X.; Devereaux, T. P.; Lee, W. -S., Stanford Univ, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA.
Ghiringhelli, G.; Peng, Y. Y.; Braicovich, L., Politecn Milan, Dipartimento Fis, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy.
Ghiringhelli, G.; Braicovich, L., Politecn Milan, CNR SPIN, CNISM, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy.
Hashimoto, M., SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA.
Kummer, K.; Brookes, N. B., ESRF, BP 220, F-38043 Grenoble, France.
He, Y.; Chen, S.; Shen, Z. -X.; Devereaux, T. P., Stanford Univ, Geballe Lab Adv Mat, Stanford, CA 94305 USA.
Ishida, S.; Yoshida, Y.; Eisaki, H., Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058560, Japan.
Salluzzo, M., CNR SPIN, Complesso Monte St Angelo,Via Cinthia, I-80126 Naples, Italy.}},
DOI = {{10.1038/NPHYS4157}},
ISSN = {{1745-2473}},
EISSN = {{1745-2481}},
Keywords-Plus = {{X-RAY-SCATTERING; ORDER; SUPERCONDUCTIVITY; SEPARATION; SPIN}},
Research-Areas = {{Physics}},
Web-of-Science-Categories = {{Physics, Multidisciplinary}},
Author-Email = {{zxshen@stanford.edu
tpd@stanford.edu
leews@stanford.edu}},
ResearcherID-Numbers = {{Moritz, Brian J/D-7505-2015
Ghiringhelli, Giacomo/D-1159-2014
salluzzo, marco/C-5919-2009
Yoshida, Yoshiyuki/L-6221-2018
Brookes, Nicholas B/C-6718-2019
Ishida, Shigeyuki/L-6231-2018
peng, yingying/K-1805-2015
Eisaki, Hiroshi/F-6317-2018
}},
ORCID-Numbers = {{Moritz, Brian J/0000-0002-3747-8484
Ghiringhelli, Giacomo/0000-0003-0867-7748
salluzzo, marco/0000-0001-8372-6963
Yoshida, Yoshiyuki/0000-0001-7998-1873
Brookes, Nicholas B/0000-0002-1342-9530
Ishida, Shigeyuki/0000-0001-9445-8079
peng, yingying/0000-0002-2657-3590
Eisaki, Hiroshi/0000-0002-8299-6416
Braicovich, Lucio/0000-0001-6548-9140
Chaix, Laura/0000-0002-6757-9040
He, YU/0000-0003-0425-4529}},
Funding-Acknowledgement = {{US Department of Energy (DOE), Office of Science, Basic Energy Sciences,
Materials Sciences and Engineering DivisionUnited States Department of
Energy (DOE) {[}DE-AC02-76SF00515]; Department of Energy, SLAC
Laboratory Directed Research and Development {[}DE-AC02-76SF00515]}},
Funding-Text = {{We thank S. A. Kivelson for discussions. This work is supported by the
US Department of Energy (DOE), Office of Science, Basic Energy Sciences,
Materials Sciences and Engineering Division, under contract
DE-AC02-76SF00515. L.C. acknowledges the support from Department of
Energy, SLAC Laboratory Directed Research and Development funder
contract under DE-AC02-76SF00515. The data in Fig. 1b were taken partly
at the Advanced Resonant Spectroscopies (ADRESS) beam line of the Swiss
Light Source, using the Super Advanced X-ray Emission Spectrometer
(SAXES) instrument jointly built by Paul Scherrer Institut (Villigen,
Switzerland), Politecnico di Milano (Italy), and Ecole Polytechnique
Federale de Lausanne (Switzerland); all other RIXS data were taken at
the ID32 of the ESRF (Grenoble, France) using the ERIXS spectrometer
designed jointly by the ESRF and Politecnico di Milano. ARPES data were
taken at Stanford Synchrotron Radiation Lightsource, operated by the US
Department of Energy, Office of Science, Office of Basic Energy
Sciences.}},
Number-of-Cited-References = {{34}},
Times-Cited = {{42}},
Usage-Count-Last-180-days = {{5}},
Usage-Count-Since-2013 = {{56}},
Journal-ISO = {{Nat. Phys.}},
Doc-Delivery-Number = {{FI7MO}},
Unique-ID = {{ISI:000412181200014}},
OA = {{Green Published}},
DA = {{2020-12-22}},
}
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