Wolf-Dieter Schneider

Dipl.Phys., University of Bonn, 1971 - PhD (Dr. rer. nat.), University of Bonn, 1975 - Ass. Prof., University of Campinas 1976 - Ass. Prof., Free University of Berlin, 1977 - Privat-docent, Free University of Berlin 1982 - Privat-docent, University of Neuchâtel 1985 - Full Prof., Université de Lausanne, 1989 - Full Prof., EPFL, 2003 He worked at the Universities of Bonn (Germany), Uppsala (Sweden), Campinas(Brasil), Free University of Berlin (Germany), Wisconsin, Madison (USA), Neuchatel (Switzerland), Manoa, Honululu, Hawaii (USA) and Lausanne (Switzerland). Since 2003 he is full professor at the EPFL (Switzerland) in Lausanne. Research group established at the University of Lausanne in 1989 Research activity: Nanoscience Scanning tunneling microscopy and spectroscopy supported nanostructuresORCID iD 0000-0001-9854-7431 Author Identifier: N-7949-2014

À propos de ce résultat

Cette page est générée automatiquement et peut contenir des informations qui ne sont pas correctes, complètes, à jour ou pertinentes par rapport à votre recherche. Il en va de même pour toutes les autres pages de ce site. Veillez à vérifier les informations auprès des sources officielles de l'EPFL.

Unités associées (5)

Unités associées

Chargement

Cours enseignés par cette personne

Chargement

Domaines de recherche associés (50)

Domaines de recherche associés

Chargement

Publications associées (210)

Publications associées

Chargement

Personnes menant des recherches similaires (89)

Personnes menant des recherches similaires

Chargement

Microscope à effet tunnel

thumb|Atomes de silicium à la surface d'un cristal de carbure de silicium (SiC). Image obtenue à l'aide d'un STM. Le microscope à effet tunnel (en anglais, scanning tunneling microscope, STM) est inv

Scanning tunneling spectroscopy

Scanning tunneling spectroscopy (STS), an extension of scanning tunneling microscopy (STM), is used to provide information about the density of electrons in a sample as a function of their energy. I

Théorie des bandes

redresse=1.5|vignette|Représentation schématique des bandes d'énergie d'un solide. représente le niveau de Fermi. thumb|upright=1.5|Animation sur le point de vue quantique sur les métaux et isolants

Highlights of the Science and Life of Peter Varga (1946-2018)

Wolf-Dieter Schneider

Peter Varga has passed on October 27, 2018. His pioneering discoveries of chemical resolution at the atomic scale on surface alloys, atomic resolution of ultrathin alkali halides, nucleation of bcc iron in ultrathin films, and the microscopic structure of ultrathin alumina films stimulated worldwide research. In recognition of his outstanding scientific contributions, in December 2017 the Japanese Society for the Promotion of Science (JSPS) awarded him a prize for his distinguished contribution on the clarification of surface phenomena by atomic level investigations and the development of novel functional materials. This contribution highlights the life of Peter Varga as a scientist and as a person. With his elegance, his energy, his wit, and his generosity he was a close friend and role model to many of us, and showed us how to combine scientific curiosity and creativity with the lightness of being.

SURFACE SCI SOC JAPAN2020

Chargement

Sensing the Spin of an Individual Ce Adatom

Wolf-Dieter Schneider, Markus Ternes

The magnetic moment of rare earth elements originates from electrons in the partially filled 4f orbitals. Accessing this moment electrically by scanning tunneling spectroscopy is hampered by shielding of outerlying orbitals. Here, we show that we can detect the magnetic moment of an individual Ce atom adsorbed on a Cu2N ultrathin film on Cu(100) by using a sensor tip that has its apex functionalized with a Kondo screened spin system. We calibrate the sensor tip by deliberately coupling it to a well characterized Fe atom. Subsequently, we use the splitting of the tip's Kondo resonance when approaching a spectroscopically dark Ce atom to sense its magnetic moment.

AMER PHYSICAL SOC2020

Chargement

Molecular Adsorption Changes the Quantum Structure of Oxide-Supported Gold Nanoparticles: Chemisorption versus Physisorption

Wolf-Dieter Schneider

STM conductance spectroscopy and mapping has been used to analyze the impact of molecular adsorption on the quantized electronic structure of individual metal nanoparticles. For this purpose, isophorone and CO2, as prototype molecules for physisorptive and chemisorptive binding, were dosed onto monolayer Au islands grown on MgO thin films. The molecules attach exclusively to the metal-oxide boundary, while the interior of the islands remains pristine. The Au quantum well states are perturbed due to the adsorption process and increase their mutual energy spacing in the CO2 case but move together in isophorone-covered islands. The shifts disclose the nature of the molecule-Au interaction, which relies on electron exchange for the CO2 ligands but on dispersive forces for the organic species. Our experiments reveal how molecular adsorption affects individual quantum systems, a topic of utmost relevance for heterogeneous catalysis.

American Physical Society2015

Chargement