Publications by authors named "Yishu Han"

Article Synopsis
  • * Dark interlayer excitons, typically hard to observe due to their optical inactivity, were successfully visualized in WS/h-BN/WSe heterostructures using advanced microscopy techniques.
  • * The study showed that as excitons transition from a classical state to a quantum degenerate state at lower temperatures, their diffusion rates change in a way explained by a nonlinear quantum diffusion model, highlighting potential applications in quantum computing and precise measurements.
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For non-contact friction, energy is usually dissipated through phonon excitation, Joule dissipation and van der Waals friction. Although some new dissipation mechanisms related to the quantum phenomenon have been discovered, the contribution of hysteretic behavior to non-contact friction energy dissipation is lacking in research. In this paper, the distance dependence of non-contact friction on the graphite surface is studied by using a quartz tuning fork with lateral vibration in the atmosphere.

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