Fast spectroscopic mapping of two-dimensional quantum materials

  title={Fast spectroscopic mapping of two-dimensional quantum materials},
  author={Berk Zengin and Jens Oppliger and Danyang Liu and Lorena Niggli and T. Kurosawa and Fabian D Natterer},
  journal={Physical Review Research},
Spectroscopic mapping refers to the massive recording of spectra whilst varying an additional degree of freedom, such as: magnetic field, location, temperature, or charge carrier concentration. As this involves two serial tasks, spectroscopic mapping can become excruciatingly slow. We demonstrate exponentially faster mapping through our combination of sparse sampling and parallel spectroscopy. We exemplify our concept using quasiparticle interference imaging of Au(111) and Bi2Sr2CaCu2O8… 

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