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arXiv · 1901.03552

Epitaxial single layer NbS$_{2}$ on Au(111): synthesis, structure, and electronic properties

Raluca-Maria Stan·Sanjoy K. Mahatha·Marco Bianchi·Charlotte E. Sanders·Davide Curcio·Philip Hofmann·Jill A. Miwa
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Abstract

We report on the epitaxial growth of single layer NbS$_2$ on Au(111) and determine both its crystalline and electronic structure by a combination of low-energy electron diffraction, scanning tunnelling microscopy and angle-resolved photoemission spectroscopy. The layer is found to grow in the 1H structural phase with a lattice constant of (3.29$\pm$0.03)~\AA, a value comparable to the bulk 2H NbS$_2$ lattice constant. The photoemission data reveals a metallic band structure down to a temperature of 30~K. The observed bands are rather broad and consistent with either a strong NbS$_2$-substrate interaction or with the recently reported interplay of strong many-body effects in single layer NbS$_2$ \cite{Loon:2018aa}. No indications of a charge density wave are observed.

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Raluca-Maria Stan, Sanjoy K. Mahatha, Marco Bianchi, Charlotte E. Sanders, Davide Curcio, Philip Hofmann, Jill A. Miwa. 2019-01-11. Epitaxial single layer NbS$_{2}$ on Au(111): synthesis, structure, and electronic properties. https://doi.org/10.1103/physrevmaterials.3.044003

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