{"title":"Ultrafast dynamics in the presence of antiferromagnetic correlations in electron doped cuprate La2 xCexCuO4±δ","status":"public","acknowledgement":"Optical pump-probe work was supported by the Gordon and Betty Moore Foundation's EPiQS initiative through Grant No. GBMF4540. Materials growth and characterization was supported by AFOSR FA95501410332 and NSF DMR1410665.","publisher":"American Physical Society","year":"2017","oa":1,"oa_version":"None","intvolume":"        95","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publist_id":"7437","date_created":"2018-12-11T11:46:13Z","volume":95,"language":[{"iso":"eng"}],"_id":"392","abstract":[{"text":"We used femtosecond optical pump-probe spectroscopy to study the photoinduced change in reflectivity of thin films of the electron-doped cuprate La2-xCexCuO4 (LCCO) with dopings of x=0.08 (underdoped) and x=0.11 (optimally doped). Above Tc, we observe fluence-dependent relaxation rates that begin at a temperature similar to the one where transport measurements first show signatures of antiferromagnetic correlations. Upon suppressing superconductivity with a magnetic field, it is found that the fluence and temperature dependence of relaxation rates are consistent with bimolecular recombination of electrons and holes across a gap (2ΔAF) originating from antiferromagnetic correlations which comprise the pseudogap in electron-doped cuprates. This can be used to learn about coupling between electrons and high-energy (ω&gt;2ΔAF) excitations in these compounds and set limits on the time scales on which antiferromagnetic correlations are static.","lang":"eng"}],"main_file_link":[{"open_access":"1","url":"http://dspace.mit.edu/handle/1721.1/109835"}],"date_published":"2017-03-13T00:00:00Z","publication_status":"published","citation":{"mla":"Vishik, Inna, et al. “Ultrafast Dynamics in the Presence of Antiferromagnetic Correlations in Electron Doped Cuprate La2 XCexCuO4±δ.” <i>Physical Review B</i>, vol. 95, no. 11, American Physical Society, 2017, doi:<a href=\"https://doi.org/10.1103/PhysRevB.95.115125\">10.1103/PhysRevB.95.115125</a>.","ieee":"I. Vishik, F. Mahmood, Z. Alpichshev, N. Gedik, J. Higgins, and R. Greene, “Ultrafast dynamics in the presence of antiferromagnetic correlations in electron doped cuprate La2 xCexCuO4±δ,” <i>Physical Review B</i>, vol. 95, no. 11. American Physical Society, 2017.","apa":"Vishik, I., Mahmood, F., Alpichshev, Z., Gedik, N., Higgins, J., &#38; Greene, R. (2017). Ultrafast dynamics in the presence of antiferromagnetic correlations in electron doped cuprate La2 xCexCuO4±δ. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevB.95.115125\">https://doi.org/10.1103/PhysRevB.95.115125</a>","ista":"Vishik I, Mahmood F, Alpichshev Z, Gedik N, Higgins J, Greene R. 2017. Ultrafast dynamics in the presence of antiferromagnetic correlations in electron doped cuprate La2 xCexCuO4±δ. Physical Review B. 95(11).","chicago":"Vishik, Inna, Fahad Mahmood, Zhanybek Alpichshev, Nuh Gedik, Joshu Higgins, and Richard Greene. “Ultrafast Dynamics in the Presence of Antiferromagnetic Correlations in Electron Doped Cuprate La2 XCexCuO4±δ.” <i>Physical Review B</i>. American Physical Society, 2017. <a href=\"https://doi.org/10.1103/PhysRevB.95.115125\">https://doi.org/10.1103/PhysRevB.95.115125</a>.","ama":"Vishik I, Mahmood F, Alpichshev Z, Gedik N, Higgins J, Greene R. Ultrafast dynamics in the presence of antiferromagnetic correlations in electron doped cuprate La2 xCexCuO4±δ. <i>Physical Review B</i>. 2017;95(11). doi:<a href=\"https://doi.org/10.1103/PhysRevB.95.115125\">10.1103/PhysRevB.95.115125</a>","short":"I. Vishik, F. Mahmood, Z. Alpichshev, N. Gedik, J. Higgins, R. Greene, Physical Review B 95 (2017)."},"extern":"1","issue":"11","month":"03","date_updated":"2021-01-12T07:53:12Z","type":"journal_article","doi":"10.1103/PhysRevB.95.115125","author":[{"first_name":"Inna","last_name":"Vishik","full_name":"Vishik, Inna"},{"first_name":"Fahad","last_name":"Mahmood","full_name":"Mahmood, Fahad"},{"full_name":"Alpichshev, Zhanybek","id":"45E67A2A-F248-11E8-B48F-1D18A9856A87","first_name":"Zhanybek","last_name":"Alpichshev","orcid":"0000-0002-7183-5203"},{"full_name":"Gedik, Nuh","last_name":"Gedik","first_name":"Nuh"},{"last_name":"Higgins","first_name":"Joshu","full_name":"Higgins, Joshu"},{"full_name":"Greene, Richard","last_name":"Greene","first_name":"Richard"}],"day":"13","publication":"Physical Review B"}