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

doi:10.1103/PhysRevB.92.155148

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 journal › Article › peer-review

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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 language	English (US)
Article number	155148
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	92
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevB.92.155148
State	Published - Oct 29 2015
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.92.155148

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Langner, M. C., Zhou, S., Coslovich, G., Chuang, Y. D., Zhu, Y., Robinson, J. S., Schlotter, W. F., Turner, J. J., Minitti, M. P., Moore, R. G., Lee, W. S., Lu, D. H., Doering, D., Denes, P., Tomioka, Y., Tokura, Y., Kaindl, R. A., & Schoenlein, R. W. (2015). Ultrafast x-ray and optical signatures of phase competition and separation underlying the photoinduced metallic phase in Pr1-xCaxMnO3. Physical Review B - Condensed Matter and Materials Physics, 92(15), Article 155148. https://doi.org/10.1103/PhysRevB.92.155148

Langner, MC, Zhou, S, Coslovich, G, Chuang, YD, Zhu, Y, Robinson, JS, Schlotter, WF, Turner, JJ, Minitti, MP, Moore, RG, Lee, WS, Lu, DH, Doering, D, Denes, P, Tomioka, Y, Tokura, Y, Kaindl, RA & Schoenlein, RW 2015, 'Ultrafast x-ray and optical signatures of phase competition and separation underlying the photoinduced metallic phase in Pr1-xCaxMnO3', Physical Review B - Condensed Matter and Materials Physics, vol. 92, no. 15, 155148. https://doi.org/10.1103/PhysRevB.92.155148

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

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.",

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

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AU - Langner, M. C.

AU - Zhou, S.

AU - Coslovich, G.

AU - Chuang, Y. D.

AU - Zhu, Y.

AU - Robinson, J. S.

AU - Schlotter, W. F.

AU - Turner, J. J.

AU - Minitti, M. P.

AU - Moore, R. G.

AU - Lee, W. S.

AU - Lu, D. H.

AU - Doering, D.

AU - Denes, P.

AU - Tomioka, Y.

AU - Tokura, Y.

AU - Kaindl, R. A.

AU - Schoenlein, R. W.

PY - 2015/10/29

Y1 - 2015/10/29

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AB - 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.

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

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