Effect of delocalization on one-dimensional spin dynamics
- 1 June 1982
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 25 (11), 6609-6615
- https://doi.org/10.1103/physrevb.25.6609
Abstract
We discuss the combined effect of spin delocalization and one-dimensional (1D) diffusion on the hyperfine-controlled nuclear relaxation and EPR linewidth. We calculate the local-spin-correlation functions in the 1D random-walk model for a particle delocalized over several sites. At low frequency the divergent diffusive contribution is independent of the delocalization; however, the delocalization introduces a negative frequency-independent contribution which is proportional to the delocalization length.Keywords
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