Abstract
We have found that a significant change in the local structure of occurs between 80 K and temperatures above the Curie temperature, K. Near-edge x-ray-absorption spectra exhibits changes between 80 K and above . X-ray-absorption fine structure reveals differences between the nearest-neighbor Mn-O bond distributions at 80 K and above . The single-site distribution at low temperature becomes a complex, multi-site distribution above . The observed change is consistent with proposed small polaron related local Jahn-Teller distortions for .
- Received 5 February 1996
DOI:https://doi.org/10.1103/PhysRevB.53.13985
©1996 American Physical Society