by Brookes, N. B., Ghiringhelli, G., Charvet, A. -M., Fujimori, A., Kakeshita, T., Eisaki, H., Uchida, S. and Mizokawa, T.
Abstract:
The spin character of the states at the top of the valence band in doped La2-xSrxCuO4 (x = 0.03, 0.07, 0.15, 0.22, and 0.30) has been investigated using spin-polarized resonant photoemission. A clear Zhang-Rice singlet (ZRS) is observed at all doping levels. Its stability and polarization are preserved as a function of doping, suggesting that the concept of the ZRS can be used across a wide doping range and up to the metallic nonsuperconducting overdoped regime. The results are significant for theoretical models that use the ZRS approximation and for the understanding of the peculiar interplay between the ZRS and the remaining localized spins.
Reference:
Stability of the Zhang-Rice Singlet with Doping in Lanthanum Strontium Copper Oxide Across the Superconducting Dome and Above (Brookes, N. B., Ghiringhelli, G., Charvet, A. -M., Fujimori, A., Kakeshita, T., Eisaki, H., Uchida, S. and Mizokawa, T.), In PHYSICAL REVIEW LETTERS, AMER PHYSICAL SOC, volume 115, 2015.
Bibtex Entry:
@article{ ISI:000357501400011, Author = {Brookes, N. B. and Ghiringhelli, G. and Charvet, A. -M. and Fujimori, A. and Kakeshita, T. and Eisaki, H. and Uchida, S. and Mizokawa, T.}, Title = {{Stability of the Zhang-Rice Singlet with Doping in Lanthanum Strontium Copper Oxide Across the Superconducting Dome and Above}}, Journal = {{PHYSICAL REVIEW LETTERS}}, Year = {{2015}}, Volume = {{115}}, Number = {{2}}, Month = {{JUL 7}}, Abstract = {{The spin character of the states at the top of the valence band in doped La2-xSrxCuO4 (x = 0.03, 0.07, 0.15, 0.22, and 0.30) has been investigated using spin-polarized resonant photoemission. A clear Zhang-Rice singlet (ZRS) is observed at all doping levels. Its stability and polarization are preserved as a function of doping, suggesting that the concept of the ZRS can be used across a wide doping range and up to the metallic nonsuperconducting overdoped regime. The results are significant for theoretical models that use the ZRS approximation and for the understanding of the peculiar interplay between the ZRS and the remaining localized spins.}}, Publisher = {{AMER PHYSICAL SOC}}, Address = {{ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA}}, Type = {{Article}}, Language = {{English}}, Affiliation = {{Brookes, NB (Corresponding Author), European Synchrotron Radiat Facil, CS 40220, F-38043 Grenoble 9, France. Brookes, N. B.; Ghiringhelli, G., European Synchrotron Radiat Facil, F-38043 Grenoble 9, France. Ghiringhelli, G., Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy. Charvet, A. -M., Univ Grenoble 1, UGA, PhITEM, F-38041 Grenoble 9, France. Fujimori, A.; Kakeshita, T.; Uchida, S., Univ Tokyo, Dept Phys, Tokyo 1130033, Japan. Eisaki, H.; Uchida, S., Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan. Mizokawa, T., Univ Tokyo, Dept Complex Sci & Engn, Chiba 2778561, Japan.}}, DOI = {{10.1103/PhysRevLett.115.027002}}, Article-Number = {{027002}}, ISSN = {{0031-9007}}, EISSN = {{1079-7114}}, Keywords-Plus = {{ELECTRONIC-STRUCTURE; TRANSPORT-PROPERTIES; CHARGE DYNAMICS; LA2-XSRXCUO4; STATES; TRANSITION; LA2CUO4; HOLES}}, Research-Areas = {{Physics}}, Web-of-Science-Categories = {{Physics, Multidisciplinary}}, Author-Email = {{brookes@esrf.fr}}, ResearcherID-Numbers = {{Eisaki, Hiroshi/F-6317-2018 Fujimori, Atsushi/U-1971-2019 Mizokawa, Takashi/E-3302-2015 Brookes, Nicholas B/C-6718-2019 Ghiringhelli, Giacomo/D-1159-2014}}, ORCID-Numbers = {{Eisaki, Hiroshi/0000-0002-8299-6416 Mizokawa, Takashi/0000-0002-7682-2348 Brookes, Nicholas B/0000-0002-1342-9530 Ghiringhelli, Giacomo/0000-0003-0867-7748}}, Number-of-Cited-References = {{41}}, Times-Cited = {{10}}, Usage-Count-Last-180-days = {{3}}, Usage-Count-Since-2013 = {{39}}, Journal-ISO = {{Phys. Rev. Lett.}}, Doc-Delivery-Number = {{CM2HU}}, Unique-ID = {{ISI:000357501400011}}, OA = {{Green Published}}, DA = {{2020-12-22}}, }
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