Sökning: onr:"swepub:oai:DiVA.org:uu-236511" >
Self-doping process...
-
Magnuson, MartinLinköpings universitet,Tunnfilmsfysik,Tekniska högskolan,Linköping University
(författare)
Self-doping processes between planes and chains in the metal-to-superconductor transition of YBa2Cu3O6.9
- Artikel/kapitelEngelska2014
Förlag, utgivningsår, omfång ...
-
2014-11-12
-
Springer Science and Business Media LLC,2014
-
electronicrdacarrier
Nummerbeteckningar
-
LIBRIS-ID:oai:DiVA.org:uu-236511
-
https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-236511URI
-
https://doi.org/10.1038/srep07017DOI
-
https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-111968URI
-
https://research.chalmers.se/publication/208159URI
Kompletterande språkuppgifter
-
Språk:engelska
-
Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
-
Ämneskategori:ref swepub-contenttype
-
Ämneskategori:art swepub-publicationtype
Anmärkningar
-
The interplay between the quasi 1-dimensional CuO-chains and the 2-dimensional CuO2 planes of YBa2Cu3O61x (YBCO) has been in focus for a long time. Although the CuO-chains are known to be important as charge reservoirs that enable superconductivity for a range of oxygen doping levels in YBCO, the understanding of the dynamics of its temperature-driven metal-superconductor transition (MST) remains a challenge. We present a combined study using x-ray absorption spectroscopy and resonant inelastic x-ray scattering (RIXS) revealing how a reconstruction of the apical O(4)-derived interplanar orbitals during the MST of optimally doped YBCO leads to substantial hole-transfer from the chains into the planes, i.e. self-doping. Our ionic model calculations show that localized divalent charge-transfer configurations are expected to be abundant in the chains of YBCO. While these indeed appear in the RIXS spectra from YBCO in the normal, metallic, state, they are largely suppressed in the superconducting state and, instead, signatures of Cu trivalent charge-transfer configurations in the planes become enhanced. In the quest for understanding the fundamental mechanism for high-Tc-superconductivity (HTSC) in perovskite cuprate materials, the observation of such an interplanar self-doping process in YBCO opens a unique novel channel for studying the dynamics of HTSC.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
-
Schmitt, ThorstenPaul Scherrer Institut, Swiss Light Source (SLS), Villigen, Switzerland
(författare)
-
Strocov, Vladimir N.Paul Scherrer Institut, Swiss Light Source (SLS), Villigen, Switzerland
(författare)
-
Schlappa, JustinaPaul Scherrer Institut, Swiss Light Source (SLS), Villigen, Switzerland,Helmholtz Zentrum,Helmholtz Center
(författare)
-
Kalaboukhov, Alexei,1975Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)ascry
(författare)
-
Duda, Laurent-Claudius,1965-Uppsala universitet,Molekyl- och kondenserade materiens fysik,Uppsala University, Sweden(Swepub:uu)laurduda
(författare)
-
Kalabukhov, AlexChalmers University of Technology, Gothenburg, Sweden
(författare)
-
Linköpings universitetTunnfilmsfysik
(creator_code:org_t)
Sammanhörande titlar
-
Ingår i:Scientific Reports: Springer Science and Business Media LLC4, s. 7017-2045-2322
Internetlänk
Hitta via bibliotek
Till lärosätets databas