Dynamics of correlation-frozen antinodal quasiparticles in superconducting cuprates
- Elettra-Sincrotrone Trieste, Basovizza (Italy); DOE/OSTI
- Elettra-Sincrotrone Trieste, Basovizza (Italy); Univ. degli Studi di Trieste (Italy). Dipartimento di Fisica
- Univ. Cattolica del Sacro Cuore, Brescia (Italy). Interdisciplinary Labs. for Advanced Materials Physics
- Univ. Cattolica del Sacro Cuore, Brescia (Italy). Interdisciplinary Labs. for Advanced Materials Physics; Katholieke Univ. Leuven, Heverlee (Belgium). Dept. of Physics and Astronomy
- Ecole Polytechnique Federale Lausanne (Switzlerland). Inst. of Physics
- Univ. of British Columbia, Vancouver, BC (Canada). Dept. of Physics and Astronomy; Univ. of British Columbia, Vancouver, BC (Canada). Quantum Matter Inst.
- Harwell Science and Innovation Campus, Didcot (United Kingdom). CLF-Artemis@Rutherford Appleton Lab.
- National Inst. of Advanced Industrial Science and Technology (AIST), Tsukuba (Japan). Nanoelectronics Research Inst.
- Univ. of Minnesota, Minneapolis, MN (United States). School of Physics and Astronomy
- North Carolina State Univ., Raleigh, NC (United States). Dept. of Physics
- National Simulation Center, Trieste (Italy). Scuola Internazionale Superiore di Studi Avanzati (SISSA) and Consiglio Nazionale delle Ricerche–Istituto Officina dei Materiali (CNR-IOM) Democritos
- Elettra-Sincrotrone Trieste, Basovizza (Italy); Univ. degli Studi di Trieste (Italy). Dipartimento di Fisica; Univ. of Cologne (Germany). International Faculty
Many puzzling properties of high–critical temperature (Tc) superconducting (HTSC) copper oxides have deep roots in the nature of the antinodal quasiparticles, the elementary excitations with wave vector parallel to the Cu–O bonds. These electronic states are most affected by the onset of antiferromagnetic correlations and charge instabilities, and they host the maximum of the anisotropic superconducting gap and pseudogap. We use time-resolved extremeultraviolet photoemission with proper photon energy (18 eV) and time resolution (50 fs) to disclose the ultrafast dynamics of the antinodal states in a prototypical HTSC cuprate. After photoinducing a nonthermal charge redistribution within the Cu and O orbitals, we reveal a dramatic momentum-space differentiation of the transient electron dynamics. Whereas the nodal quasiparticle distribution is heated up as in a conventional metal, new quasiparticle states transiently emerge at the antinodes, similarly to what is expected for a photoexcited Mott insulator, where the frozen charges can be released by an impulsive excitation. This transient antinodal metallicity is mapped into the dynamics of the O-2p bands, thus directly demonstrating the intertwining between the lowand high-energy scales that is typical of correlated materials. Our results suggest that the correlation-driven freezing of the electrons moving along the Cu–O bonds, analogous to the Mott localization mechanism, constitutes the starting point for any model of high-Tc superconductivity and other exotic phases of HTSC cuprates.
- Research Organization:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Organization:
- Alfred P. Sloan; Canada First Research Excellence Fund (CFREF); Canada Foundation for Innovation (CFI); Canada Research Chairs Program; European Union’s Horizon 2020; Killam; LASERLAB-EUROPE; Natural Sciences and Engineering Research Council of Canada (NSERC); Swiss National Science Foundation (SNF); USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-76SF00515
- OSTI ID:
- 1625984
- Journal Information:
- Science Advances, Journal Name: Science Advances Journal Issue: 2 Vol. 4; ISSN 2375-2548
- Publisher:
- AAASCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Photo-enhanced antinodal conductivity in the pseudogap state of high-Tc cuprates
Spin singlet and quasiparticle excitations in cuprate superconductors
ARPES Studies of Cuprate Fermiology: Superconductivity, Pseudogap and Quasiparticle Dynamics
Journal Article
·
Thu Jul 10 20:00:00 EDT 2014
· Nature Communications
·
OSTI ID:1623948
Spin singlet and quasiparticle excitations in cuprate superconductors
Journal Article
·
Tue Nov 22 19:00:00 EST 2022
· Physical Review. B
·
OSTI ID:1971483
ARPES Studies of Cuprate Fermiology: Superconductivity, Pseudogap and Quasiparticle Dynamics
Journal Article
·
Thu Jun 23 00:00:00 EDT 2011
· Submitted to New Journal of Physics
·
OSTI ID:1017205