Abstract
A new honeycomb lattice iridate (La,Na)IrO3 (≈LaNaIr2O6) is successfully synthesized from the spin–orbit coupled Mott insulator Na2IrO3 by replacing the interlayer Na+ ions with La3+ ions. (La,Na)IrO3 shows a finite Sommerfeld term in heat capacity and a −lnT dependence of resistivity, indicating a realization of a metallic state driven by a Mott collapse. Furthermore, crystal structure analysis reveals the formation of Ir zig-zag chains with metal–metal bonding, increasing kinetic energy resulting in the Mott collapse. This observation would be due to a Mott collapse induced in a J eff = 1/2 spin–orbit coupling Mott insulator with an Ir honeycomb lattice by topochemical control of the ionic configuration.
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.
