Coherent electronic band structure of TiTe2/ TiSe2 moire bilayer

T. C. Chiang, Mei Yin Chou, Meng Kai Lin, Tao He, Joseph A. Hlevyack, Peng Chen, Sung Kwan Mo

研究成果: 雜誌貢獻期刊論文同行評審

4 引文 斯高帕斯(Scopus)

摘要

A van der Waals bonded moirebilayer formed by sequential growth of TiSe2 and TiTe2 monolayers exhibits emergent electronic structure as evidenced by angle-resolved photoemission band mapping. The two monolayers adopt the same lattice orientation but incommensurate lattice constants. Despite the lack of translational symmetry, sharp dispersive bands are observed. The dispersion relations appear distinct from those for the component monolayers alone. Theoretical calculations illustrate the formation of composite bands by coherent electronic coupling despite the weak interlayer bonding, which leads to band renormalization and energy shifts.

原文???core.languages.en_GB???
頁(從 - 到)3359-3364
頁數6
期刊ACS Nano
15
發行號2
DOIs
出版狀態已出版 - 23 2月 2021

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