Nanotechnologies utilize physical and chemical properties which arise by shrinking a material in size to the nanometer length scale. The structural stability of nanoscale building blocks is a central aspect in nanoscience as it governs the long-term stability of a device. Function, however, is only achieved once a device is energized, which is why nanotechnologies require materials which are structurally stable under operation conditions.
On the atomic level, the structure is prone to ultrafast motions that [more...]
The researchers of the Department report that plasmonic properties of a scanning tunneling microscope (STM) junction can be manipulated by nanofabrication of Au tips using focused ion beam (FIB) milling. An exemplary Fabry–Pérot like resonator of surface plasmons is demonstrated by producing a single groove on a smoothed tip shaft. STM-induced luminescence spectra of these tips exhibit spectral modulation originating from the interference between localized and propagating surface plasmon [more...]