Abstract
The temperature dependence of the spin-lattice relaxation of the charge-transfer complex TMPD-TCNQ is reported and interpreted in terms of a theory describing the complex as a model system for the linear Heisenberg chain. The analysis is based on the Kubo-Tomita theory for relaxation through spin exchange interactions.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 895-899 |
| Number of pages | 5 |
| Journal | Solid State Communications |
| Volume | 7 |
| Issue number | 13 |
| DOIs | |
| State | Published - Jul 1 1969 |
Funding
Theoretical45 and ESR6’7 studies of charge-transfer complexes containing linear chains of aromatic ion radicals indicate that the intra-chain exchange interaction (J = 100—3000 cm 1) is about 10~larger than the inter-chain exchange and is the same for both nearest neighbors. The magnetic excitations of the regular linear chain have been described as uncorrelated pairs of spacially5 The delocalized spins (Wannier spin excitons). *This work was partially supported by the U.S. Atomic Energy Commission and partially supported by Department of Chemistry and Materials Research Center, Northwestern University. Professor Zoltan Soos for many helpful discussions. This work has benefitted from facilities provided by the Advanced Research Projects Agency through the Center for Materials Research at Northwestern University.
ASJC Scopus subject areas
- General Chemistry
- Condensed Matter Physics
- Materials Chemistry