Abstract
This study addresses the nature of the hole states in the high oxidation state cuprates. From the thermochemistry of oxidation in the cuprate superconductors, specifically inLa 2− x A x CuO 4− x/2+δ ( A =Ba, Sr, Ca, Pb) and YBa 2Cu 3O 6+δ, a model is proposed that assigns a major fraction of the holes in these “Cu 3+” materials to states which chemically are “peroxidelike,” involving holes paired on adjacent oxygens. Based on this hypothesis previously reported structural observations on NaCuO 2, KCuO 2,La 2− x Sr x CuO 4−x/2+δ, and YBa 2Cu 3O 6+δ are modeled. Electrical properties (including superconductivity) of the high oxidation state cuprates are closely related to these structural trends.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
