Abstract
(Tetrakisdimethylaminoethylene)- was the first fullerene charge transfer complex with a transition into a soft ferromagnetic low temperature phase at 16 K. The origin of the low temperature phase in (TDAE)- is still a subject of discussion. To unravel the real nature of the ferromagnetic ground state we will present measurements of the conductivity in (TDAE)- for the first time. The conductivity is of the order of S/cm at room temperature and the temperature dependence is clearly nonmetallic. This contradicts the assumption that (TDAE)- is a ferromagnetic metal.
- Received 6 June 1994
DOI:https://doi.org/10.1103/PhysRevLett.73.1299
©1994 American Physical Society