The Fermi-level band of monolayer NbSe2 is shown by STM to be an obstructed atomic insulator, with its Wannier center at the empty 1c site, via a new method that extracts orbital correlation functions from scanning tunneling images.
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Probing the Quantized Berry Phases in 1H-NbSe$_2$ Using Scanning Tunneling Microscopy
The Fermi-level band of monolayer NbSe2 is shown by STM to be an obstructed atomic insulator, with its Wannier center at the empty 1c site, via a new method that extracts orbital correlation functions from scanning tunneling images.