Snapshots of the retarded interaction of charge carriers with ultrafast fluctuations in cuprates
| Autor: | B. Ludbrook, Martin Greven, Andrea Damascelli, Claudio Giannetti, Daniele Brida, S. Dal Conte, Hiroshi Eisaki, Riccardo Comin, Giancarlo Soavi, Stefano Lupi, Denis Golež, Massimo Capone, Lev Vidmar, L. Chauviere, Nikolai D. Zhigadlo, Gabriele Ferrini, Giulio Cerullo, Janez Bonča, Simone Peli, Francesco Banfi, Marcin Mierzejewski |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Copper oxide
General Physics and Astronomy FOS: Physical sciences 02 engineering and technology superconductors 01 natural sciences Settore FIS/03 - Fisica della Materia Superconductivity (cond-mat.supr-con) Condensed Matter::Materials Science chemistry.chemical_compound Condensed Matter - Strongly Correlated Electrons Physics and Astronomy (all) Condensed Matter::Superconductivity High-temperature superconductors 0103 physical sciences Antiferromagnetism Cuprate 010306 general physics Spectroscopy electron boson coupling Superconductivity Physics Condensed matter physics Strongly Correlated Electrons (cond-mat.str-el) Condensed Matter - Superconductivity anti-ferromagnetic fluctuations 021001 nanoscience & nanotechnology Time-resolved Spectroscopy chemistry Pairing Computer Science::Programming Languages Charge carrier Snapshots of the retarded interaction of charge carriers with ultrafast fluctuations in cuprates 0210 nano-technology Ultrashort pulse Physics - Optics Optics (physics.optics) |
| Zdroj: | Nature physics 11 (2015): 421–426. doi:10.1038/NPHYS3265 info:cnr-pdr/source/autori:Dal Conte, S.; Vidmar, L.; Golez, D.; Mierzejewski, M.; Soavi, G.; Peli, S.; Banfi, F.; Ferrini, G.; Comin, R.; Ludbrook, B. M.; Chauviere, L.; Zhigadlo, N. D.; Eisaki, H.; Greven, M.; Lupi, S.; Damascelli, A.; Brida, D.; Capone, M.; Bonca, J.; Cerullo, G.; Giannetti, C./titolo:Snapshots of the retarded interaction of charge carriers with ultrafast fluctuations in cuprates/doi:10.1038%2FNPHYS3265/rivista:Nature physics (Print)/anno:2015/pagina_da:421/pagina_a:426/intervallo_pagine:421–426/volume:11 11 (2015): 421–426. doi:10.1038/nphys3265 info:cnr-pdr/source/autori:Dal Conte S.; Vidmar L.; Golez D.; Mierzejewski M.; Soavi G.; Peli S.; Banfi F.; Ferrini G.; Comin R.; Ludbrook B.M.; Chauviere L.; Zhigadlo N.D.; Eisaki H.; Greven M.; Lupi S.; Damascelli A.; Brida D.; Capone M.; Bonca J.; Cerullo G.; Giannetti C./titolo:Snapshots of the retarded interaction of charge carriers with ultrafast fluctuations in cuprates/doi:10.1038%2Fnphys3265/rivista:Nature physics (Print)/anno:2015/pagina_da:421/pagina_a:426/intervallo_pagine:421–426/volume:11 |
| Popis: | One of the pivotal questions in the physics of high-temperature superconductors is whether the low-energy dynamics of the charge carriers is mediated by bosons with a characteristic timescale. This issue has remained elusive since electronic correlations are expected to dramatically speed up the electron-boson scattering processes, confining them to the very femtosecond timescale that is hard to access even with state-of-the-art ultrafast techniques. Here we simultaneously push the time resolution and the frequency range of transient reflectivity measurements up to an unprecedented level that enables us to directly observe the 16 fs build-up of the effective electron-boson interaction in hole-doped copper oxides. This extremely fast timescale is in agreement with numerical calculations based on the t-J model and the repulsive Hubbard model, in which the relaxation of the photo-excited charges is achieved via inelastic scattering with short-range antiferromagnetic excitations. Comment: to appear in Nature Physics |
| Databáze: | OpenAIRE |
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