Molekulární nanoarchitektury na površích topologických izolantů

Keywords
Periodic arrays of ferromagnetically coupled transition metal atoms on topological insulator surfaces are predicted to break time-reversal symmetry. This can result in the emergence of, e. g., a quantum anomalous Hall effect, showing a wide range of interesting physical properties and potential applications, e.g., in spintronics and quantum devices. We will realize this by employing periodic arrays of magnetic atoms embedded in 2D metalorganic networks (MON) on a Bi2Se3 substrate. The MONs will be prepared via self-assembly from molecular precursors and transition metal atoms. Their properties will be investigated by a combination of surface-sensitive UHV techniques (low energy electron microscopy and diffraction, scanning tunneling microscopy, and X-ray photoelectron spectroscopy) with frequency domain EPR and magneto-optical spectrometry. We hope to realize the hybrid organic-inorganic material system, describe the growth kinetics to obtain large area MONs, optimize their structure to display the long-range