Abstract
The structure of the spin-Peierls compound has been analyzed by time-of-flight neutron powder diffraction as a function of external pressure. The structural changes allow us to explain the strong pressure dependence of the magnetic susceptibility most likely related to the pronounced pressure-induced increase of the spin-Peierls transition temperature. The structural changes induced by Si substitution are found to be opposite to those observed upon applying external pressure.
- Received 19 February 1999
DOI:https://doi.org/10.1103/PhysRevB.60.9616
©1999 American Physical Society