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| Author | : Zhang, Lei |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 116 |
| Release | : 2019-07-05 |
| Genre | : Science |
| ISBN | : 386644950X |
| Author | : Lei Zhang |
| Publisher | : |
| Total Pages | : |
| Release | : 2012 |
| Genre | : |
| ISBN | : |
| Author | : Maerkl, Junji Tobias |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 114 |
| Release | : 2016-01-20 |
| Genre | : Physics |
| ISBN | : 3731504359 |
In this work, magnetic atoms on surfaces are studied with low-temperature scanning tunneling microscopy. Motivated by the idea to use single atoms as magnetic bits, the factors that allow or prevent long-term stability of their magnetic moments are investigated. Lifetimes of up to several minutes can be achieved for the magnetic moments of holmium atoms on a Pt(111) surface, resulting from the combined symmetries of the system. Corresponding theoretical calculations are presented and evaluated.
| Author | : Rai, Vibhuti Narayan |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 150 |
| Release | : 2022-10-04 |
| Genre | : Science |
| ISBN | : 3731512017 |
In this work, a clear pathway is presented to achieve well-defined electronically decoupled chromophores from metallic leads without requiring additional insulating layers. To study such self-decoupled molecules, STM equipped with an efficient light detection setup has been used. Results show that the chromophores mounted on tripodal molecular platforms adsorbed on a gold surface present well-defined and efficient electroluminescence down to the single-molecule level.
| Author | : Skolaut, Julian |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 164 |
| Release | : 2023-09-14 |
| Genre | : |
| ISBN | : 3731512475 |
This work presents a single molecular motor driven by the current in an STM. Its chiral functional group is supposed to perform a rotation in a preferred direction, proven by Binomial tests to be statistically significant. The rotation is proposedly driven by the chiral-induced spin selectivity effect (CISS). However, the studies of the rotation on the dependence on the lateral tip position, voltage and current indicate that he CISS is unlikely to cause the preferred rotation direction.
| Author | : Jandke, Jasmin Maria |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 244 |
| Release | : 2019-05-02 |
| Genre | : |
| ISBN | : 3731507471 |
| Author | : Stefan Kuck |
| Publisher | : |
| Total Pages | : 115 |
| Release | : 2009 |
| Genre | : |
| ISBN | : 9783868530605 |
| Author | : Judith Donner |
| Publisher | : |
| Total Pages | : |
| Release | : 2016 |
| Genre | : |
| ISBN | : |
| Author | : Gozlinski, Thomas |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 208 |
| Release | : 2023-03-24 |
| Genre | : Science |
| ISBN | : 3731512793 |
Complementary to scattering techniques, scanning tunnelling microscopy provides atomic-scale real space information about a material's electronic state of matter. State-of-the-art designs of a scanning tunnelling microscope (STM) allow measurements at millikelvin temperatures with unprecedented energy resolution. Therefore, this instrument excels in probing the superconducting state at low temperatures and especially its local quasiparticle excitations as well as bosonic degrees of freedom.
| Author | : Schackert, Michael Peter |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 148 |
| Release | : 2015-03-23 |
| Genre | : Physics |
| ISBN | : 3731502380 |
This work describes the experimental study of electron-boson interactions in superconductors by means of inelastic electron tunneling spectroscopy performed with a scanning tunneling microscope (STM) at temperatures below 1 K. This new approach allows the direct measurement of the Eliashberg function of conventional superconductors as demonstrated on lead (Pb) and niobium (Nb). Preparative experiments on unconventional iron-pnictides are presented in the end.
