Abstract
A Hamiltonian describing the cooperative Jahn-Teller (JT) effect is derived taking fully into consideration the symmetry both from the local and the crystal point of view. The coefficients of the JT interaction term in the Hamiltonian are expressed as a function of the local JT interaction constants. It is shown that the traditional description of the cluster CuCl 6 as an approximate octahedron is incomplete. On the basis of the Hamiltonian obtained, the helical ordering of the pseudo-spins which span the lowest electronic state of Cu 2+ in the site symmetry D 3d is derived. The tripling of the lattice periodicity and the helical arrangement of Cl − ion displacements of the compound follow as a result.
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.
