5 papers
Imaging geometry- and phase-controlled spectra in a surface-state Andreev cavity
Adrian Greichgauer, Yoichi Ando, Jens Brede
Andreev cavities provide a setting in which superconducting proximity spectra are shaped by phase-coherent electron-hole motion along extended trajectories. While such Andreev phys…
Topological insulator single-electron transistors for charge sensing applications
Omargeldi Atanov, Junya Feng, Jens Brede +2
We present topological insulator (TI)-based single-electron transistors (SETs) as magnetic-field-compatible charge sensing devices that are easily integrable with TI-superconductor…
Ex Situ Fabrication of Superconducting Nanostructures for Low-Temperature STM
Adrian Greichgauer, Roozbeh Yazdanpanah, Alexey Taskin +3
Nanofabrication of topological insulator (TI) devices is essential for accessing edge and interface states, but conventional lithography and etching compromise the atomically clean…
Quasiparticle interference on the surface of BiSe terminated (PbSe)(BiSe)
Mahasweta Bagchi, Philipp RüÃmann, Gustav Bihlmayer +3
Among the family of topological superconductors derived from {\BiSe}, is unique in its surface termination of…
Characterizing the chemical potential disorder in the topological insulator (BiSb)Te thin films
Jens Brede, Mahasweta Bagchi, Adrian Greichgauer +6
We use scanning tunneling microscopy and spectroscopy under ultra-high vacuum and down to 1.7 K to study the local variations of the chemical potential on the surface of the topolo…