Publication
Electronic and magnetic properties of bulk Cr tips for scanning tunneling spectroscopy
Publications associées (33)
Five-Membered Rings Create Off-Zero Modes in Nanographene
Oleg Yazyev, Kristians Cernevics, Ziyi Wang
The low-energy electronic structure of nanographenes can be tuned through zero-energy pi-electron states, typically referred to as zero-modes. Customizable electronic and magnetic structures have been engineered by coupling zero-modes through exchange and ...
Washington2023Character of Electronic States in the Transport Gap of Molecules on Surfaces
We report on scanningtunneling microscopy (STM) topographs ofindividual metal phthalocyanines (MPc) on a thin salt (NaCl) filmadsorbed on a gold substrate, at tunneling energies within the molecule'selectronic transport gap. Theoretical models of increasin ...
AMER CHEMICAL SOC2023Magnetic Properties of Surface Adsorbed Metal Adatoms and Dimers
This thesis investigates the magnetic properties of single atoms and dimers adsorbed on graphene and oxide decoupling layers supported by single crystal metal substrates, using scanning tunneling microscopy (STM) and spin-polarized scanning tunneling micro ...
EPFL2022Magnetic force microscopy contrast formation and field sensitivity
The magnetic force microscope (MFM) is an established experimental tool for imaging stray fields with high spatial resolution and sensitivity. The MFM contrast can however contain contributions from the sample topography, variations in the surface Kelvin p ...
2022Increasing Magnetic Anisotropy in Bimetallic Nanoislands Grown on fcc(111) Metal Surfaces
Harald Brune, Stefano Rusponi, Sergio Vlaic, Dimitrios Mousadakos
The magnetic properties and the atomic scale morphology of bimetallic two-dimensional nanoislands, epitaxially grown on fcc(111) metal surfaces, have been studied by means of Magneto-Optical Kerr Effect and Scanning Tunneling Microscopy. We investigate the ...
MDPI2022Quantum dynamics in individual surface spins
This thesis presents a combined experimental and theoretical study of the classical and quantum magnetization dynamics in single magnetic adatoms and molecules, and on the classical and quantum coherent control thereof. First, a detailed description of the ...
EPFL2021Real-space subfemtosecond imaging of quantum electronic coherences in molecules
Tracking electron motion in molecules is the key to understanding and controlling chemical transformations. Contemporary techniques in attosecond science are able to generate and trace the consequences of this motion in real time, but not in real space. Sc ...
NATURE PORTFOLIO2021Ultrafast Photon-Induced Tunneling Microscopy
Unification of the techniques of ultrafast science and scanning tunneling microscopy (STM) has the potential of tracking electronic motion in molecules simultaneously in real space and real time. Laser pulses can couple to an STM junction either in the wea ...
AMER CHEMICAL SOC2021Single channel Josephson effect in a high transmission atomic contact
Klaus Kern, Markus Etzkorn, Jacob Senkpiel
The Josephson effect in scanning tunneling microscopy (STM) is an excellent tool to probe the properties of a superconductor on a local scale. We use atomic manipulation in a low temperature STM to create mesoscopic single channel contacts and study the Jo ...
NATURE PUBLISHING GROUP2020Quantum phase transitions and the role of impurity-substrate hybridization in Yu-Shiba-Rusinov states
Klaus Kern, Jacob Senkpiel, Haonan Huang
Spin-dependent scattering from magnetic impurities inside a superconductor gives rise to Yu-Shiba-Rusinov (YSR) states within the superconducting gap. They can be modeled by the largely equivalent Kondo or Anderson impurity models. The role of the magnetic ...
NATURE RESEARCH2020