Unusually long carrier lifetime in a Mott insulator revealed by time-resolved Photoemission Electron Microscopy

Frontiers in Optics / Laser Science(2020)

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Abstract
Mott insulators display puzzling insulator to metal transitions under electric field. We study here the Mott insulator GaV4S8 using time-resolved Photoemission Electron Microcopy and reveal unusually long carrier lifetimes, supporting the mechanism of electronic avalanche.
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Key words
Mott insulator,Photoemission electron microscopy,Carrier lifetime,Electron,Insulator (electricity),Electric field,Condensed matter physics,Electron microscope,Materials science
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