From our analysis of the magnetic susceptibility in M(pc)I organic conductors, we are able to extract a carrier-mediated exchange interaction for Cu2+ spins in the alloy CuxNi1-x(pc)I. We find that Jed≈300 K. We also show that residual magnetic impurities must be present to account for the observed experimental trends. At high temperatures, we argue that the experimentally observed positive magnetoresistance is consistent with the standard semiclassical correction (ωcτ)2, indicating that in this regime, transport is diffusive and three dimensional.
|Original language||English (US)|
|Number of pages||3|
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|State||Published - Jan 1 1999|
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics