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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2007

Ultrafast electronic dynamics in the metal-insulator transition compound NdNiO3

P. Ruello
S. Zhang
P. Laffez

Résumé

Visible ultrafast optical property studies have been performed in the metal-insulator transition compound NdNiO3 from room temperature down to 16 K. A clear slowing down of the electronic relaxation is reported when the system becomes insulating. Two characteristic times of electronic relaxation have been found in the insulating phase while a single one is observed in the metallic state. Moreover, the magnitude of the ultrafast electronic transient reflectivity exhibits a drastic increase in the insulating state. Finally, a hysteresis of the electronic response is evidenced in accordance with electrical resistivity measurements.
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hal-00418722 , version 1 (21-09-2009)

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P. Ruello, S. Zhang, P. Laffez, B. Perrin, Vitali Goussev. Ultrafast electronic dynamics in the metal-insulator transition compound NdNiO3. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2007, 76 (16), pp.165107. ⟨10.1103/PhysRevB.76.165107⟩. ⟨hal-00418722⟩
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