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Showing 1–6 of 6 results
Advanced filters: Author: Søren Ulstrup Clear advanced filters

  • Here, the authors report the observation of an interlayer plasmon polaron in heterostructures composed of graphene and monolayer WS2. This is manifested in the ARPES spectra as a strong quasiparticle peak accompanied by several carrier density-dependent shake-off replicas around the WS2 conduction band minimum.

    • Søren Ulstrup
    • Yann in ’t Veld
    • Jyoti Katoch
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-9

  • Sharp atomic interfaces between materials dictate the interface’s electronic properties. The authors use angle-resolved photoemission spectroscopy with a spatial resolution of ~500 nm to investigate the nanoscale electronic band structure and band alignment in a lateral heterostructure composed of WS2 placed on alternating nano-stripes of monolayer and bilayer graphene.

    • Søren Ulstrup
    • Cristina E. Giusca
    • Philip Hofmann
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-7

  • Graphene-dielectric interfaces play a crucial role in many electronic devices, but electronic properties of graphene are inevitably degraded when the interfaces are produced. Omiciuolo et al.solve this problem using a low-cost approach based on epitaxial growth of graphene on dielectric alloys.

    • Luca Omiciuolo
    • Eduardo R. Hernández
    • Alessandro Baraldi
    Research
    Nature Communications
    Volume: 5, P: 1-8

  • The intermediate states in photo-excited phase transitions are expected to be inhomogeneous. However, ultrafast X-ray imaging shows the early part of the metal–insulator transition in VO2 is homogeneous but then becomes heterogeneous.

    • Allan S. Johnson
    • Daniel Perez-Salinas
    • Simon E. Wall
    ResearchOpen Access
    Nature Physics
    Volume: 19, P: 215-220