{"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publisher":"American Physical Society","abstract":[{"lang":"eng","text":"Ultrafast lasers are an increasingly important tool to control and stabilize emergent phases in quantum materials. Among a variety of possible excitation protocols, a particularly intriguing route is the direct light engineering of microscopic electronic parameters, such as the electron hopping and the local Coulomb repulsion (Hubbard \r\nU). In this work, we use time-resolved x-ray absorption spectroscopy to demonstrate the light-induced renormalization of the Hubbard U in a cuprate superconductor, La1.905Ba0.095CuO4. We show that intense femtosecond laser pulses induce a substantial redshift of the upper Hubbard band while leaving the Zhang-Rice singlet energy unaffected. By comparing the experimental data to time-dependent spectra of single- and three-band Hubbard models, we assign this effect to an approximately 140-meV reduction of the on-site Coulomb repulsion on the copper sites. Our demonstration of a dynamical Hubbard U renormalization in a copper oxide paves the way to a novel strategy for the manipulation of superconductivity and magnetism as well as to the realization of other long-range-ordered phases in light-driven quantum materials."}],"oa":1,"external_id":{"arxiv":["2109.13229"]},"keyword":["General Physics and Astronomy"],"oa_version":"Published Version","publication":"Physical Review X","doi":"10.1103/physrevx.12.011013","language":[{"iso":"eng"}],"year":"2022","extern":"1","date_updated":"2023-08-22T07:28:38Z","day":"20","intvolume":"        12","article_type":"original","publication_identifier":{"eissn":["2160-3308"]},"main_file_link":[{"url":"https://doi.org/10.1103/PhysRevX.12.011013","open_access":"1"}],"article_number":"011013","citation":{"mla":"Baykusheva, Denitsa Rangelova, et al. “Ultrafast Renormalization of the On-Site Coulomb Repulsion in a Cuprate Superconductor.” <i>Physical Review X</i>, vol. 12, no. 1, 011013, American Physical Society, 2022, doi:<a href=\"https://doi.org/10.1103/physrevx.12.011013\">10.1103/physrevx.12.011013</a>.","apa":"Baykusheva, D. R., Jang, H., Husain, A. A., Lee, S., TenHuisen, S. F. R., Zhou, P., … Mitrano, M. (2022). Ultrafast renormalization of the on-site Coulomb repulsion in a cuprate superconductor. <i>Physical Review X</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevx.12.011013\">https://doi.org/10.1103/physrevx.12.011013</a>","ieee":"D. R. Baykusheva <i>et al.</i>, “Ultrafast renormalization of the on-site Coulomb repulsion in a cuprate superconductor,” <i>Physical Review X</i>, vol. 12, no. 1. American Physical Society, 2022.","ista":"Baykusheva DR, Jang H, Husain AA, Lee S, TenHuisen SFR, Zhou P, Park S, Kim H, Kim J-K, Kim H-D, Kim M, Park S-Y, Abbamonte P, Kim BJ, Gu GD, Wang Y, Mitrano M. 2022. Ultrafast renormalization of the on-site Coulomb repulsion in a cuprate superconductor. Physical Review X. 12(1), 011013.","ama":"Baykusheva DR, Jang H, Husain AA, et al. Ultrafast renormalization of the on-site Coulomb repulsion in a cuprate superconductor. <i>Physical Review X</i>. 2022;12(1). doi:<a href=\"https://doi.org/10.1103/physrevx.12.011013\">10.1103/physrevx.12.011013</a>","chicago":"Baykusheva, Denitsa Rangelova, Hoyoung Jang, Ali A. Husain, Sangjun Lee, Sophia F. R. TenHuisen, Preston Zhou, Sunwook Park, et al. “Ultrafast Renormalization of the On-Site Coulomb Repulsion in a Cuprate Superconductor.” <i>Physical Review X</i>. American Physical Society, 2022. <a href=\"https://doi.org/10.1103/physrevx.12.011013\">https://doi.org/10.1103/physrevx.12.011013</a>.","short":"D.R. Baykusheva, H. Jang, A.A. Husain, S. Lee, S.F.R. TenHuisen, P. Zhou, S. Park, H. Kim, J.-K. Kim, H.-D. Kim, M. Kim, S.-Y. Park, P. Abbamonte, B.J. Kim, G.D. Gu, Y. Wang, M. Mitrano, Physical Review X 12 (2022)."},"author":[{"id":"71b4d059-2a03-11ee-914d-dfa3beed6530","last_name":"Baykusheva","first_name":"Denitsa Rangelova","full_name":"Baykusheva, Denitsa Rangelova"},{"full_name":"Jang, Hoyoung","last_name":"Jang","first_name":"Hoyoung"},{"first_name":"Ali A.","last_name":"Husain","full_name":"Husain, Ali A."},{"full_name":"Lee, Sangjun","last_name":"Lee","first_name":"Sangjun"},{"full_name":"TenHuisen, Sophia F. R.","last_name":"TenHuisen","first_name":"Sophia F. R."},{"full_name":"Zhou, Preston","first_name":"Preston","last_name":"Zhou"},{"full_name":"Park, Sunwook","first_name":"Sunwook","last_name":"Park"},{"last_name":"Kim","first_name":"Hoon","full_name":"Kim, Hoon"},{"full_name":"Kim, Jin-Kwang","first_name":"Jin-Kwang","last_name":"Kim"},{"last_name":"Kim","first_name":"Hyeong-Do","full_name":"Kim, Hyeong-Do"},{"first_name":"Minseok","last_name":"Kim","full_name":"Kim, Minseok"},{"last_name":"Park","first_name":"Sang-Youn","full_name":"Park, Sang-Youn"},{"full_name":"Abbamonte, Peter","last_name":"Abbamonte","first_name":"Peter"},{"first_name":"B. J.","last_name":"Kim","full_name":"Kim, B. J."},{"last_name":"Gu","first_name":"G. D.","full_name":"Gu, G. D."},{"last_name":"Wang","first_name":"Yao","full_name":"Wang, Yao"},{"full_name":"Mitrano, Matteo","first_name":"Matteo","last_name":"Mitrano"}],"month":"01","date_published":"2022-01-20T00:00:00Z","title":"Ultrafast renormalization of the on-site Coulomb repulsion in a cuprate superconductor","scopus_import":"1","date_created":"2023-08-09T13:08:26Z","issue":"1","article_processing_charge":"No","type":"journal_article","_id":"13994","status":"public","volume":12,"publication_status":"published","quality_controlled":"1"}