3 papers
cond-mat.supr-con2026
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…
cond-mat.mtrl-sci2025
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…
cond-mat.mes-hall2024
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…