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Updated: Jul 25, 2025

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model
Published on: May 23, 2018
Kagome surface states and weak electronic correlation in vanadium-kagome metals
Jianyang Ding1,2, Ningning Zhao3, Zicheng Tao4
1National Key Laboratory of Materials for Integrated Circuits, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China.
Abstract:
RV6Sn6(R= Y and lanthanides) with two-dimensional vanadium-kagome surface states is an ideal platform to investigate kagome physics and manipulate the kagome features to realize novel phenomena. Utilizing the micron-scale spatially resolved angle-resolved photoemission spectroscopy and first-principles calculations, we report a systematical study of the electronic structures ofRV6Sn6(R= Gd, Tb, and Lu) on the two cleaved surfaces, i.e. the V- andRSn1-terminated (001) surfaces. The calculated bands without any renormalization match well with the main ARPES dispersive features, indicating the weak electronic correlation in this system. We observe 'W'-like kagome surface states around the Brillouin zone corners showingR-element-dependent intensities, which is probably due to various coupling strengths between V andRSn1layers. Our finding suggests an avenue for tuning electronic states by interlayer coupling based on two-dimensional kagome lattices.
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