We are happy to announce that the third funding period of our SFB 1170 “Topological and Correlated Electronics at Surfaces and Interfaces” (ToCoTronics) has been approved by DFG! Our research group is contributing by two projects to this collaborative research effort:
In project A02 we will investigate spin-resolved transport properties of clean and doped topological materials. We will utilize the spin-polarized molecular nanoprobe (SP-MONA), a novel technique which allows for investigations at single-nm length scales and with single-impurity sensitivity. We will apply SP-MONA to investigate (i) the spin-momentum locking for Dirac electrons in topological insulators, such as Bi2Se3. Furthermore, (ii) we will study how the propagation of charge carriers is affected by single defects or deliberately deposited adatoms. Finally, (iii) we plan to design of engineered adatom assemblies for improved quantum transport functionalities.
Project C02 is aimed towards ultra-high resolution surface studies of topological superconductors. Towards this goal we will engineer and scrutinize the properties of (i) two-dimensional thin film hybrid systems, (ii) one-dimensional adatom chains, and (iii) lattices of impurities, which are viable platforms to realize topological superconductors which potentially host Majorana modes.
