The coexistence of ferromagnetic and antiferromagnetic phases and their role in the photoinduced insulator-to-metal transition in Pr1-xCaxMnO3 are revealed via ultrafast resonant x-ray diffraction and broadband optical reflectivity measurements. The antiferromagnetic scattering signal and ferromagnetically sensitive reflectivity measurements show similar, strongly temperature dependent time scales. We attribute the common dynamics to an activation barrier between the equilibrium insulating phase and the photoinduced metallic phase related to interactions between the phase-separated ferromagnetic and antiferromagnetic insulating phases.
|Original language||English (US)|
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|State||Published - Oct 29 2015|
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics