![Holium STM Setting](/img/RU_Schoen/holmium_STM_setting_rdax_1024x1448_98p.jpg)
We present a quantum master equation analysis of the dynamics of magnetic adatoms on a metallic surface probed by a spin polarized STM. As a specific example, we investigate the behaviour and exceptional long lifetimes of single holmium atoms on platinum.
Phys. Rev. B 91, 245430 (2015)![Double QD Fluctuation Theorem](/img/RU_Schoen/2QD-Ensslin-Golubev_rdax_98s.jpg)
We present a low-temperature experimental test of the fluctuation theorem for electron transport through a double quantum dot. The rare entropy-consuming system trajectories where single charges flow against the source-drain bias appear with a frequency that agrees with the theoretical predictions.
Phys. Rev. X 2, 011001 (2012)![YBCO islands subdominate phase](/img/RU_Schoen/YBCO-NatureNanotech_rdax_98s.jpg)
This is a recent work on nanoscale high-Tc cuprate islands, motivated by the recent observation of a fully gapped state in nanosized YBCO islands. We investigate subdominant order parameters induced by the surface of the nanoparticle.