Influence of the cation disorder on the magnetic properties of underdoped cuprates

DOI

We want to isolate the effects of doping, charge localization and local distortion on the transition from insulating antiferromagnet to superconducting metal in YBCO. We choose Y_{1-x}Eu_xBa_2Cu_3O_{6+y} (0<y<0.4, x=0.08) since the Eu substitution for Y introduces structural disorder in the adjacent CuO_2 layer, due to the difference of the ionic radii, with no change in the Coulomb interaction. The aim is to distinguish distortion-driven and Coulomb-driven disorder in the electronic cluster glass state around the metal-insulator transition (i.e. the distruption of antiferromagnetism and the emergence of the superconductivity) by comparing this isovalent cation disorder with our previous data on the pristine YBCO and on the etherovalent substituted Y_{1-x}Ca_xBa_2Cu_3O_{6+y}.

Identifier
DOI https://doi.org/10.5286/ISIS.E.24003323
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24003323
Provenance
Creator Professor Roberto De Renzi; Mr Francesco Coneri; Dr Allodi; Professor Samuele Sanna
Publisher ISIS Neutron and Muon Source
Publication Year 2010
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Representation
Resource Type Dataset
Discipline Photon- and Neutron Geosciences
Temporal Coverage Begin 2007-12-04T10:42:43Z
Temporal Coverage End 2007-12-09T23:40:10Z