Publications by authors named "Wen-Ao Liao"
Article Synopsis
- Defects in two-dimensional materials like MoSe affect their physical and chemical properties, making atomic-scale characterization crucial.
- Researchers utilized spectroscopic imaging scanning tunneling microscopy to investigate how Mo antisite and V vacancy defects behave differently depending on their charge states in MoSe bilayers on graphene.
- The study found that these defects can generate a local magnetic moment and could lead to advancements in material engineering and spin-based applications.
Single-element polarization in low dimensions is fascinating for constructing next-generation nanoelectronics with multiple functionalities, yet remains difficult to access with satisfactory performance. Here, spectroscopic evidences are presented for the spontaneous electronic polarization in tellurium (Te) films thinned down to bilayer, characterized by low-temperature scanning tunneling microscopy/spectroscopy. The unique chiral structure and centrosymmetry-breaking character in 2D Te gives rise to sizable in-plane polarization with accumulated charges, which is demonstrated by the reversed band-bending trends at opposite polarization edges in spatially resolved spectra and conductance mappings.
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