Detection of Early Formation of Two-Dimensional Electron Gas on the Surface of Topological Insulator
M. L. Prokopovych, Ye. S. Kushnirenko
G.V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine
Received: 08.07.2014. Download: PDF
A method of pixel-by-pixel intensity comparison for angle resolved photoemission spectra is developed. This method is used to detect the beginning of two-dimensional electron-gas formation on the surface of a topological insulator. In addition, the developed method allows estimating the degree of nonlinearity of the photoelectron detector directly from the experimental data. It creates the necessary conditions for the analysis of shape of the line of photoemission spectra.
Key words: ARPES, electronic spectrum, topological insulator, two-dimensional electron gas.
PACS: 07.81.+a, 07.85.Qe, 29.30.Dn, 71.10.Pm, 73.20.-r, 79.60.Bm, 79.60.Dp
Citation: M. L. Prokopovych and Ye. S. Kushnirenko, Detection of Early Formation of Two-Dimensional Electron Gas on the Surface of Topological Insulator, Metallofiz. Noveishie Tekhnol., 37, No. 2: 157—168 (2015) (in Ukrainian)