The JuDiT database of impurities embedded into a Topological Insulator

Authors: Philipp Rüßmann1*, Fabian Bertoldo1, Stefan Blügel1

  1. Peter Grünberg Institut and Institute for Advanced Simulation, Forschungszentrum Jülich and JARA, D-52425 Jülich, Germany
  • Corresponding author email: p.ruessmann@fz-juelich.de

DOI10.24435/materialscloud:2020.0030/v1 (version v1, submitted on 25 March 2020)

How to cite this entry

Philipp Rüßmann, Fabian Bertoldo, Stefan Blügel, The JuDiT database of impurities embedded into a Topological Insulator, Materials Cloud Archive (2020), doi: 10.24435/materialscloud:2020.0030/v1.

Description

We present JuDiT (Jülich Database of impurities embedded into a Topological insulator) which collects first principles calculation of impurities embedded into the prototypical topological insulator Sb2Te3. The density functional calculations of this work were performed with the JuKKR package [1], which allows to embed translational invariance breaking impurities into crystalline host system based on the Korringa-Kohn-Rostoker Green function method, and were performed with the AiiDA-KKR package [2]. Our database collects, among others, predicted impurity properties like charge doping introduced by the defects, magnetic moments of the impurities and impurity density of states calculations. We include calculations for the intrinsic Fermi level in the middle of the bulk band gap as well as for shifted Fermi level into valence and conduction band which models different experimental conditions. The impurities were embedded into different layers throughout a 6 quintuple layer thick film which allows to investigate the effect of the topological surface state (localized at the surface) on impurity properties. The JuDiT database allows to uncover chemical trends in impurity properties and can help optimizing the next generation of topological materials.

[1] https://jukkr.fz-juelich.de and www.judft.de
[2] https://github.com/JuDFTteam/aiida-kkr

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Files

File name Size Description
README.txt
MD5MD5: f0b1a6b8ab88c301b4174d16aabe2c12
910 Bytes Description of the export files
Sb2Te3_slab_imp_dos_nodes.tar.gz
MD5MD5: 32f900f6d4b2c01f401e933bdd256797
14.9 GiB density of states calculations of the impurities embedded into Sb2Te3
Sb2Te3_slab_imp_scf_nodes.tar.gz
MD5MD5: 44ba38659bf5d76d1244d77d05d042de
13.9 GiB self-consistent impurity embedding calculations for a large number impurities embedded into different layer of a 6QL film of Sb2Te3
Sb2Te3_slab_host.tar.gz
MD5MD5: 2e89f3d027089df315cedd3d3b9f8515
227.4 MiB 6QL thin film of Sb2Te3 (host system for impurity embedding), including host DOS and bandstructure

License

Files and data are licensed under the terms of the following license: Creative Commons Attribution 4.0 International.

External references

Preprint (Paper describing the AiiDA-KKR plugin and the JuDiT database)
P. Rüßmann, F. Bertoldo, S. Blügel, arXiv:2003.08315 [cond-mat.mtrl-sci] (2020)
Software (Reference for the JuKKR codes that implement the Korringa-Kohn-Rostoker Green function method)
JuKKR - the KKR codes from Jülich
Website (Electronic structure codes developed at the Forschungszentum Jülich)
JuDFT website
Software (Source code of the AiiDA-KKR plugin)
AiiDA-KKR source code doi:10.5281/zenodo.3628251

Keywords

density functional theory KKR Topological Insulator impurity JuDiT Quantum anomalous Hall insulator impurity properties impurities impurity density of states aiida-kkr ML4Q VITI MAX

Version history

25 March 2020 [This version]