Zhang-Rice physics and anomalous copper states in A-site ordered perovskites

• Main Authors: Freeland, J. W., Meyers, D., Mukherjee, Swarnakamal., Cheng, J. G., Middey, S., Zhou, J. S., Goodenough, J. B., Gray, B. A., Saha-Dasgupta, T., Chakhalian, J.
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Science::Physics
• Online Access: https://hdl.handle.net/10356/101512; http://hdl.handle.net/10220/18605
• Institution: Nanyang Technological University

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-energ...