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MA: Fachverband Magnetismus

MA 22: Joint Session "Topological Insulators II" (jointly with DS, HL, O, TT)

MA 22.11: Vortrag

Mittwoch, 28. März 2012, 12:15–12:30, EB 301

A recipe for new Topological Insulators based on bonds, bands, symmetry andheavy atoms — •L. Müchler¹, B. Yan^2,3, S. Chadov^1,4, F. Casper¹, S-C. Zhang², and C. Felser^1,4 — ¹Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg - University, Mainz — ²Department of Physics, McCullough Building,Stanford University,Stanford, CA 94305-4045, USA — ³Bremen Center for Computational Materials Science, Universität Bremen, Am Fallturm 1, 28359 Bremen, Germany — ⁴Max Planck Institute for Chemical Physics of Solids, Dresden, Germany.

In this work we will present a recipe to find new Topological Insulators (TIs) based on bonds, bands, symmetry and heavy atoms. A big issue concerning the compounds known up to now is the control of the bulk carrier density to produce truly insulating samples in the bulk. Using concepts from chemistry and supported by density-functional calculations, we want to motivate an extended search for new compounds with tunable bulk properties.