Crystalline and electronic structure of single-layer TaS₂

2016/06/19 by Charlotte E. Sanders, Maciej Dendzik, Arlette S. Ngankeu +7 · 1 citation
Physics and Astronomy · #cond-mat.mes-hall #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.94.081404

published as Phys. Rev. B 94, 081404 (2016) · 6 pages, 4 figures

arxiv created 2016/06/19 · arxiv updated 2016/08/10

Abstract

Single-layer TaS₂ is epitaxially grown on Au(111) substrates. The resulting two-dimensional crystals adopt the 1H polymorph. The electronic structure is determined by angle-resolved photoemission spectroscopy and found to be in excellent agreement with density functional theory calculations. The single layer TaS₂ is found to be strongly n-doped, with a carrier concentration of 0.3(1) extra electrons per unit cell. No superconducting or charge density wave state is observed by scanning tunneling microscopy at temperatures down to 4.7 K.

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