6 papers
Local probing of superconductivity at oxide interfaces with atomic force microscopy
Dilek Yildiz, Sungmin Kim, Dengyu Yang +10
Superconductivity in strontium titanate has remained enigmatic for more than 50 years. The LaAlO/SrTiO (LAO/STO) heterointerface enables systematic dimensional confinement,…
Breaking Peierls theorem in polyacetylene chains via topological design
Xinnan Peng, Marco Lozano, Jie Su +11
Peierls theorem postulates that a one-dimensional (1D) metallic chain must undergo a metal-to-insulator transition via lattice distortion, resulting in bond length alternation (BLA…
Measurement and Qualitative Explanation of Decay Lengths of Attractive and Repulsive Forces between Natural and Artificial Atoms
Marco Weiss, Fabian Stilp, Max Reinhart +1
Artificial atoms, such as quantum corrals, offer an excellent platform to study fundamental interactions between localized quantum states and nanoscale probes. We performed atomic…
Attosecond charge transfer in atomic-resolution scanning tunnelling microscopy
Simon Maier, Raffael Spachtholz, Katharina Glöckl +10
Electrons in atoms and molecules move on attosecond time scales. Deciphering their quantum dynamics in space and time calls for high-resolution microscopy at this speed. While scan…
Probing the Electronic Structure at the Boundary of Topological Insulators in the Family by Combined STM and AFM
Christoph S. Setescak, Irene Aguilera, Adrian Weindl +3
We develop a numerical scheme for the calculation of tunneling current and differential conductance of metal and CO-terminated STM tips on the topolog…
Janus graphene nanoribbons with a single ferromagnetic zigzag edge
Shaotang Song, Yu Teng, Weichen Tang +9
Topological design of pi-electrons in zigzag-edged graphene nanoribbons (ZGNRs) leads to a wealth of magnetic quantum phenomena and exotic quantum phases. Symmetric ZGNRs typically…