Publications by authors named "Qiao-Yin Tang"
Article Synopsis
- Researchers created a Kondo lattice/superconductor heterojunction by growing monolayer VSe on bulk 2H-NbSe, using molecular beam epitaxy to explore heavy fermion physics.
- Spectroscopic measurements revealed a new charge density wave phase in VSe and a significant Kondo resonance at the Fermi level, indicating a formed Kondo lattice throughout the film.
- The findings suggest the critical role of magnetic interstitial V atoms in forming the CDW phase, with implications for understanding heavy fermion behaviors and their interaction with superconductivity.
The Mott state in 1T-TaS is predicted to host quantum spin liquids (QSLs). However, its insulating mechanism is controversial due to complications from interlayer coupling. Here, we study the charge transfer state in monolayer 1T-NbSe, an electronic analogue to TaS exempt from interlayer coupling, using spectroscopic imaging scanning tunneling microscopy and first-principles calculations.
View Article and Find Full Text PDFExploring two-dimensional (2D) van der Waals (vdW) systems is at the forefront of materials of physics. Here, through molecular beam epitaxy on graphene-covered SiC(0001), we report successful growth of AlSb in the double-layer honeycomb (DLHC) structure, a 2D vdW material which has no direct analogue to its 3D bulk and is predicted to be kinetically stable when freestanding. The structural morphology and electronic structure of the experimental 2D AlSb are characterized with spectroscopic imaging scanning tunneling microscopy and cross-sectional imaging scanning transmission electron microscopy, which compare well to the proposed DLHC structure.
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