Optical Pump – THz Probe Response of VO2 under High Pressure

Optical Pump – THz Probe Response of VO2 under High Pressure

Braun, J. M.; Schneider, H.; Helm, M.; Mirek, R.; Boatner, L. A.; Marvel, R. E.; Haglund, R. F.; Pashkin, A.

Abstract

We present the ultrafast THz response of VO2 under high pressures. A clear anomaly is observed around 8 GPa indicating a pressure-induced phase transition. Our observations can be interpreted in terms of a bandwidth-controlled Mott-Hubbard transition.

Keywords: metal-insulator transition; high pressure; VO2; pump-probe spectroscopy

  • Open Access Logo Beitrag zu Proceedings
    XXI International Conference on Ultrafast Phenomena, 15.-20.07.2018, Hamburg, Deutschland
    Proceedings of Ultrafast Phenomena XXI, 91944 Les Ulis cedex A - France: EDP Sciences Web of Conferences
    DOI: 10.1051/epjconf/201920504003

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