Ontology highlight
ABSTRACT:
SUBMITTER: Meyers D
PROVIDER: S-EPMC3652288 | biostudies-literature | 2013
REPOSITORIES: biostudies-literature
Meyers D D Mukherjee Swarnakamal S Cheng J-G JG Middey S S Zhou J-S JS Goodenough J B JB Gray B A BA Freeland J W JW Saha-Dasgupta T T Chakhalian J J
Scientific reports 20130101
In low dimensional cuprates several interesting phenomena, including high Tc superconductivity, are deeply connected to electron correlations on Cu and the presence of the Zhang-Rice (ZR) singlet state. Here, we report on direct spectroscopic observation of the ZR state responsible for the low-energy physical properties in two isostructural A-site ordered cuprate perovskites, CaCu(3)Co(4)O(12) and CaCu(3)Cr(4)O(12) as revealed by resonant soft x-ray absorption spectroscopy on the Cu L(3,2)- and ...[more]