Ultrafast x-ray and optical signatures of phase competition and separation underlying the photoinduced metallic phase in Pr1-xCaxMnO3

M. C. Langner, S. Zhou, G. Coslovich, Y. D. Chuang, Y. Zhu, J. S. Robinson, W. F. Schlotter, J. J. Turner, M. P. Minitti, R. G. Moore, W. S. Lee, D. H. Lu, D. Doering, P. Denes, Y. Tomioka, Y. Tokura, R. A. Kaindl, R. W. Schoenlein

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

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 languageEnglish (US)
Article number155148
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume92
Issue number15
DOIs
StatePublished - Oct 29 2015
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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