Abstract
We have investigated the effect of pressure on the electronic, magnetic, and structural properties on a single crystal of conducting, ferromagnet located near the boundary of the metal-insulator transition. Contrary to the results reported on related systems, we find a transition from the conducting state to an insulating state and a decrease of with increasing pressure while the lattice structure remains unchanged. We show that this unusual behavior is driven by a gradual change of the spin state of ions from magnetic intermediate-spin to a nonmagnetic low-spin state.
- Received 19 December 2003
DOI:https://doi.org/10.1103/PhysRevB.69.140403
©2004 American Physical Society