An X-ray absorption study of the electric field effect mechanism in “123” cuprates

@article{ ISI:000268329100001,
Author = {Brookes, N. B. and Ghiringhelli, G. and Cezar, J. C. and De Luca, G. M.
   and Salluzzo, M.},
Title = {{An X-ray absorption study of the electric field effect mechanism in
   ``123{''} cuprates}},
Journal = {{EUROPEAN PHYSICAL JOURNAL B}},
Year = {{2009}},
Volume = {{70}},
Number = {{2}},
Pages = {{153-156}},
Month = {{JUL}},
Abstract = {{X-ray absorption spectroscopy in the presence of an electric field has
   been used to study the doping mechanism of the CuO(2) planes in
   Nd(1+x)Ba(2-x)Cu(3)O(7) compounds. The electric field effect doping is
   well-known as a method to modify the electrical properties of a thin
   film using an external gate voltage and in the copper based high
   critical temperature superconductors (HTS), it has been used to shift
   the critical temperature and even to induce phase transitions. Field
   effect experiments in ultra-thin HTS are usually interpreted by
   supposing that the induced charges develop into carriers in the CuO(2)
   conducting planes, thus changing the filling of the Zhang-Rice (ZR)
   band. Here we show that the polarization charges in both insulating and
   superconducting films, are mainly confined in the charge reservoir, and
   in particular in the CuO chains. The characteristics of the charge
   reservoir layer determine the doping of the CuO(2) planes, achieved by
   transfer of a fraction of the total injected charges. Moreover we found
   that holes injection in the CuO(2) planes is reduced in oxygen deficient
   NdBCO films.}},
Publisher = {{SPRINGER}},
Address = {{233 SPRING ST, NEW YORK, NY 10013 USA}},
Type = {{Article}},
Language = {{English}},
Affiliation = {{Brookes, NB (Corresponding Author), European Synchrotron Radiat Facil, BP 220, F-38043 Grenoble, France.
   Brookes, N. B.; Cezar, J. C., European Synchrotron Radiat Facil, F-38043 Grenoble, France.
   Ghiringhelli, G., Politecn Milan, CNR INFM COHERENTIA, I-20133 Milan, Italy.
   Ghiringhelli, G., Politecn Milan, Dip Fis, I-20133 Milan, Italy.
   De Luca, G. M.; Salluzzo, M., Univ Naples Federico 2, CNR INFM COHERENTIA, Dipartimento Sci Fisiche, I-80126 Naples, Italy.}},
DOI = {{10.1140/epjb/e2009-00221-5}},
ISSN = {{1434-6028}},
Keywords-Plus = {{YBA2CU3O7-DELTA FILMS}},
Research-Areas = {{Physics}},
Web-of-Science-Categories  = {{Physics, Condensed Matter}},
Author-Email = {{brookes@esrf.fr}},
ResearcherID-Numbers = {{salluzzo, marco/C-5919-2009
   Criginski Cezar, Julio/B-2731-2008
   Ghiringhelli, Giacomo/D-1159-2014
   Cezar, Julio Criginski/D-5039-2012
   Brookes, Nicholas B/C-6718-2019}},
ORCID-Numbers = {{salluzzo, marco/0000-0001-8372-6963
   Ghiringhelli, Giacomo/0000-0003-0867-7748
   Cezar, Julio Criginski/0000-0002-7904-6874
   Brookes, Nicholas B/0000-0002-1342-9530}},
Funding-Acknowledgement = {{EUEuropean Union (EU) {[}033191]}},
Funding-Text = {{M. Salluzzo and G. M. De Luca acknowledge the support from the EU under
   the project Nanoxide, contract No. 033191.}},
Number-of-Cited-References = {{12}},
Times-Cited = {{1}},
Usage-Count-Last-180-days = {{0}},
Usage-Count-Since-2013 = {{8}},
Journal-ISO = {{Eur. Phys. J. B}},
Doc-Delivery-Number = {{475AZ}},
Unique-ID = {{ISI:000268329100001}},
DA = {{2020-12-22}},
}