Abstract
A mechanism leading to the coexistence of weak ferromagnetism and spin glass behavior in the weak organic ferromagnet TDAE-C 60 is proposed. In view of the non-metallic character of TDAE-C 60, the C 60 −-C 60 − intra-chain coupling along the c-axis as well as the inter-chain C 60 −-C 60 − assumed to be of antiferromagnetic nature. If the spin density on the TDAE + ion is inhomogeneously distributed the TDAE + mediated super-exchange leads to a ferromagnetic coupling between C 60 − ions on different chains. This leads to a Dzyaloshinsky-Moriya type coupling responsible for the spin-canting and a non-zero spontaneous magnetization. Other models like three dimensional ferromagnetic orbital ordering of Jahn-Teller distorted C 60 molecules are discussed as well.
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.
