Building an atomic-scale vacuum trap for spin-polarized electrons
They placed an atomically sharp magnetic probe tip in front of a magnetic sample surface, thereby realizing a one-dimensional trap for electrons in the gap.
Only when resonance conditions in terms of electron energy and spin are fulfilled, standing wave states evolve in the trap, and injection of spin-polarized electrons into these states allows for the investigation of single electron reflection at the underlying atom at the surface.
Providing unprecedented insights into the atomic-scale scattering mechanism, the study potentially paves the way towards future spintronic devices employing spin-dependent electron scattering and transport.
Dr. Anika Schlenhoff
Department of Physics
University of Hamburg
Phone: +49 40 42838 6201
E-Mail: aschlenh@physnet.uni-hamburg.de
Prof. Dr. Roland Wiesendanger
Department of Physics
University of Hamburg
Phone: +49 40 42838 5244
E-Mail: wiesendanger@physnet.uni-hamburg.de
A. Schlenhoff, S. Kovařík, S. Krause, and R. Wiesendanger,
Vacuum resonance states as atomic-scale probes of noncollinear surface magnetism,
Phys. Rev. Lett. 123, 087202 (2019).
DOI: 10.1103/PhysRevLett.123.087202
Media Contact
More Information:
http://www.nanoscience.deAll latest news from the category: Physics and Astronomy
This area deals with the fundamental laws and building blocks of nature and how they interact, the properties and the behavior of matter, and research into space and time and their structures.
innovations-report provides in-depth reports and articles on subjects such as astrophysics, laser technologies, nuclear, quantum, particle and solid-state physics, nanotechnologies, planetary research and findings (Mars, Venus) and developments related to the Hubble Telescope.
Newest articles
Superradiant atoms could push the boundaries of how precisely time can be measured
Superradiant atoms can help us measure time more precisely than ever. In a new study, researchers from the University of Copenhagen present a new method for measuring the time interval,…
Ion thermoelectric conversion devices for near room temperature
The electrode sheet of the thermoelectric device consists of ionic hydrogel, which is sandwiched between the electrodes to form, and the Prussian blue on the electrode undergoes a redox reaction…
Zap Energy achieves 37-million-degree temperatures in a compact device
New publication reports record electron temperatures for a small-scale, sheared-flow-stabilized Z-pinch fusion device. In the nine decades since humans first produced fusion reactions, only a few fusion technologies have demonstrated…