Wolf-dieter Schneider - Academia.edu (original) (raw)
Papers by Wolf-dieter Schneider
Surface Review and Letters, Oct 1, 2000
We briefly review recent low temperature scanning tunneling microscopy (STM) investigations perfo... more We briefly review recent low temperature scanning tunneling microscopy (STM) investigations performed in our laboratory1–5 on the self-assembly of the dipolar organic molecule 1-nitronaphthalene (NN) adsorbed on the reconstructed Au(111) surface. NN becomes chiral upon planar adsorption on the gold surface. We observe several coverage-driven structural transformations which are associated with simultaneous changes in the enantiomeric composition of the self-assembled molecular structures. At low coverages almost exclusively decamers with an 8:2 ratio of the enantiomers are formed. In a medium coverage range enantiopure one-dimensional molecular double chains prevail on the surface. Subsequently, molecules with opposite handedness are admixed until at monolayer coverage racemic one- and two-dimensional structures coexist. Modeling shows that hydrogen bonding causes the observed self-assembly. A subtle interplay between the electrostatic interactions among the molecules and their interaction with the reconstructed metal surface is the origin of the observed coverage-driven chiral phase transition in two dimensions.
New Journal of Physics, Dec 11, 2009
Nearly 80% of all chemical reactions in nature and in human technology take place at boundaries b... more Nearly 80% of all chemical reactions in nature and in human technology take place at boundaries between phases, i.e., at surfaces or interfaces. A detailed understanding of the elementary processes at surfaces and interfaces is therefore necessary to support and to advance the high technology that very much founds the prosperity and life style of our society. One of the
APS March Meeting Abstracts, Mar 1, 2003
Angewandte Chemie, Mar 15, 1999
Adsorption of sub-monolayer amounts of 1-nitronaphthalene (NN) onto Au(111) leads to the aggregat... more Adsorption of sub-monolayer amounts of 1-nitronaphthalene (NN) onto Au(111) leads to the aggregation of NN decamers, which exhibit two-dimensional chirality and represent a racemic mixture. In analogy to Pasteur's experiment of 1848 a scanning tunneling microscope can be used to discriminate and separate the enantiomers on a molecular scale.
E-journal of Surface Science and Nanotechnology, Feb 6, 2020
Journal of The Electrochemical Society, Oct 1, 1975
New Journal of Physics, Oct 31, 2007
If we look around, everything we see is surfaces. What we cannot see, however, are the atomistic ... more If we look around, everything we see is surfaces. What we cannot see, however, are the atomistic and electronic processes that occur at surfaces (and interfaces), playing a crucial role in the properties, function, and performance of advanced materials and in nanoscale technologies.Basic research in surface and interface science is highly interdisciplinary, covering the fields of physics, chemistry, bio-physics, geo-, atmospheric and environmental sciences, material science, chemical engineering, and more. The various phenomena are interesting by themselves, and they are most important in nearly all modern technologies, as for example electronic, magnetic, and optical devices, sensors, catalysts, lubricants, hard and thermal-barrier coatings, protection against corrosion and crack formation under harsh environments. In fact, detailed understanding of the elementary processes at surfaces is necessary to support and to advance the high technology that very much founds the prosperity and lifestyle of our society. The strength of surface science as a discipline has been recognized by the award of the 2007 Nobel Prize in Chemistry to Prof. Gerhard Ertl for his studies of chemical processes on solid surfaces.Current state-of-the-art experimental studies of elementary processes at surfaces, of surface properties and functions employ a variety of sophisticated tools. Some are capable of revealing the location and motion of individual atoms. Others measure excitations (electronic, magnetic, vibronic), for example employing special light sources such as synchrotrons, high magnetic fields, or free electron lasers. The surprising variety of intriguing physical phenomena at surfaces, interfaces, and nanostructures also poses a persistent challenge for the development of theoretical descriptions, methods, and even basic physical concepts.This Focus Issue in New Journal of Physics provides a synoptic view on pertinent developments in the field.Focus on Advances in Surface and Interface Science ContentsThermal contact delocalization in atomic scale friction: a multitude of friction regimes Sergey Yu Krylov and Joost W M FrenkenUltrafast optical excitations of metallic nanostructures: from light confinement to a novel electron source Claus Ropers, Thomas Elsaesser, Giulio Cerullo, Margherita Zavelani-Rossi and Christoph LienauComplex magnetism of the Fe monolayer on Ir(111) Kirsten von Bergmann, Stefan Heinze, Matthias Bode, Gustav Bihlmayer, Stefan Blügel and Roland WiesendangerAdsorption-induced chirality in highly symmetric hydrocarbon molecules: lattice matching to substrates of lower symmetry Neville V RichardsonDynamics of electron transfer at polar molecule–metal interfaces: the role of thermally activated tunnelling J Stähler, M Meyer, X Y Zhu, U Bovensiepen and M WolfSimulating adsorption of complex molecules using the linearity between interaction energies and tunnelling currents: the case of hexabenzocoronene on a Ag/Pt dislocation network K Palotás and W A HoferAdsorbate induced self-ordering of germanium nanoislands on Si(113) Thomas Schmidt, Torben Clausen, Jan Ingo Flege, Subhashis Gangopadhyay, Andrea Locatelli, Tevfik Onur Mentes, Fang Zhun Guo, Stefan Heun and Jens FaltaARPES and STS investigation of Shockley states in thin metallic films and periodic nanostructures D Malterre, B Kierren, Y Fagot-Revurat, S Pons, A Tejeda, C Didiot, H Cercellier and A BendounanUltrafast energy flow in model biological membranes Marc Smits, Avishek Ghosh, Jens Bredenbeck, Susumu Yamamoto, Michiel Müller and Mischa BonnEpitaxy of GaN on silicon—impact of symmetry and surface reconstruction A Dadgar, F Schulze, M Wienecke, A Gadanecz, J Bläsing, P Veit, T Hempel, A Diez, J Christen and A KrostEffect of quantum confinement of surface electrons on adatom–adatom interactions V S Stepanyuk, N N Negulyaev, L Niebergall and P BrunoTemporal step fluctuations on a conductor surface: electromigration force, surface resistivity and low-frequency noise E D Williams, O Bondarchuk, C G Tao, W Yan, W G Cullen, P J Rous and T BoleSurface resonances on transition metals as low-dimensional model systems M Minca, S Penner, E Dona, A Menzel, E Bertel, V Brouet and J RedingerSymmetry breaking in few layer graphene films Aaron Bostwick, Taisuke Ohta, Jessica L McChesney, Konstantin V Emtsev, Thomas Seyller, Karsten Horn and Eli RotenbergMatthias Scheffler, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin, Germany Wolf-Dieter Schneider, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
Angewandte Chemie, Jan 25, 2008
arXiv (Cornell University), Jun 2, 2010
Israel Journal of Chemistry, Feb 21, 2023
Two‐dimensional oxide films are potentially useful for future technological applications, but als... more Two‐dimensional oxide films are potentially useful for future technological applications, but also important objects to study model catalyst systems on the more fundamental side. Here we study silica, germania, and mixed silica‐germania films supported on a metal single crystal surface Ru(0001). Those mixed films are interesting objects to systematically modify the properties of silica films, which may be used as membranes or covers for model studies in confined space, due to the modification of the rather stiff silica layers by incorporating germanium atoms replacing silicon atoms. Here we report a combined experimental and theoretical study of such layers, where we show how X‐ray photoelectron spectroscopy in combination with LEED and I/V LEEM measurements allow us to judge the formation of such mixed films.
New Journal of Physics, Dec 22, 2008
Basic research in surface and interface science is highly interdisciplinary, covering the fields ... more Basic research in surface and interface science is highly interdisciplinary, covering the fields of physics, chemistry, biophysics, geo-, atmospheric and environmental sciences, material science, chemical engineering, and more. The various phenomena are interesting by themselves, and they are most important in nearly all modern technologies, as for example electronic, magnetic, and optical devices, sensors, catalysts, lubricants, hard and thermal-barrier coatings,
Bulletin of the American Physical Society, Mar 17, 2010
Surface Review and Letters, Oct 1, 2000
We briefly review recent low temperature scanning tunneling microscopy (STM) investigations perfo... more We briefly review recent low temperature scanning tunneling microscopy (STM) investigations performed in our laboratory1–5 on the self-assembly of the dipolar organic molecule 1-nitronaphthalene (NN) adsorbed on the reconstructed Au(111) surface. NN becomes chiral upon planar adsorption on the gold surface. We observe several coverage-driven structural transformations which are associated with simultaneous changes in the enantiomeric composition of the self-assembled molecular structures. At low coverages almost exclusively decamers with an 8:2 ratio of the enantiomers are formed. In a medium coverage range enantiopure one-dimensional molecular double chains prevail on the surface. Subsequently, molecules with opposite handedness are admixed until at monolayer coverage racemic one- and two-dimensional structures coexist. Modeling shows that hydrogen bonding causes the observed self-assembly. A subtle interplay between the electrostatic interactions among the molecules and their interaction with the reconstructed metal surface is the origin of the observed coverage-driven chiral phase transition in two dimensions.
New Journal of Physics, Dec 11, 2009
Nearly 80% of all chemical reactions in nature and in human technology take place at boundaries b... more Nearly 80% of all chemical reactions in nature and in human technology take place at boundaries between phases, i.e., at surfaces or interfaces. A detailed understanding of the elementary processes at surfaces and interfaces is therefore necessary to support and to advance the high technology that very much founds the prosperity and life style of our society. One of the
APS March Meeting Abstracts, Mar 1, 2003
Angewandte Chemie, Mar 15, 1999
Adsorption of sub-monolayer amounts of 1-nitronaphthalene (NN) onto Au(111) leads to the aggregat... more Adsorption of sub-monolayer amounts of 1-nitronaphthalene (NN) onto Au(111) leads to the aggregation of NN decamers, which exhibit two-dimensional chirality and represent a racemic mixture. In analogy to Pasteur's experiment of 1848 a scanning tunneling microscope can be used to discriminate and separate the enantiomers on a molecular scale.
E-journal of Surface Science and Nanotechnology, Feb 6, 2020
Journal of The Electrochemical Society, Oct 1, 1975
New Journal of Physics, Oct 31, 2007
If we look around, everything we see is surfaces. What we cannot see, however, are the atomistic ... more If we look around, everything we see is surfaces. What we cannot see, however, are the atomistic and electronic processes that occur at surfaces (and interfaces), playing a crucial role in the properties, function, and performance of advanced materials and in nanoscale technologies.Basic research in surface and interface science is highly interdisciplinary, covering the fields of physics, chemistry, bio-physics, geo-, atmospheric and environmental sciences, material science, chemical engineering, and more. The various phenomena are interesting by themselves, and they are most important in nearly all modern technologies, as for example electronic, magnetic, and optical devices, sensors, catalysts, lubricants, hard and thermal-barrier coatings, protection against corrosion and crack formation under harsh environments. In fact, detailed understanding of the elementary processes at surfaces is necessary to support and to advance the high technology that very much founds the prosperity and lifestyle of our society. The strength of surface science as a discipline has been recognized by the award of the 2007 Nobel Prize in Chemistry to Prof. Gerhard Ertl for his studies of chemical processes on solid surfaces.Current state-of-the-art experimental studies of elementary processes at surfaces, of surface properties and functions employ a variety of sophisticated tools. Some are capable of revealing the location and motion of individual atoms. Others measure excitations (electronic, magnetic, vibronic), for example employing special light sources such as synchrotrons, high magnetic fields, or free electron lasers. The surprising variety of intriguing physical phenomena at surfaces, interfaces, and nanostructures also poses a persistent challenge for the development of theoretical descriptions, methods, and even basic physical concepts.This Focus Issue in New Journal of Physics provides a synoptic view on pertinent developments in the field.Focus on Advances in Surface and Interface Science ContentsThermal contact delocalization in atomic scale friction: a multitude of friction regimes Sergey Yu Krylov and Joost W M FrenkenUltrafast optical excitations of metallic nanostructures: from light confinement to a novel electron source Claus Ropers, Thomas Elsaesser, Giulio Cerullo, Margherita Zavelani-Rossi and Christoph LienauComplex magnetism of the Fe monolayer on Ir(111) Kirsten von Bergmann, Stefan Heinze, Matthias Bode, Gustav Bihlmayer, Stefan Blügel and Roland WiesendangerAdsorption-induced chirality in highly symmetric hydrocarbon molecules: lattice matching to substrates of lower symmetry Neville V RichardsonDynamics of electron transfer at polar molecule–metal interfaces: the role of thermally activated tunnelling J Stähler, M Meyer, X Y Zhu, U Bovensiepen and M WolfSimulating adsorption of complex molecules using the linearity between interaction energies and tunnelling currents: the case of hexabenzocoronene on a Ag/Pt dislocation network K Palotás and W A HoferAdsorbate induced self-ordering of germanium nanoislands on Si(113) Thomas Schmidt, Torben Clausen, Jan Ingo Flege, Subhashis Gangopadhyay, Andrea Locatelli, Tevfik Onur Mentes, Fang Zhun Guo, Stefan Heun and Jens FaltaARPES and STS investigation of Shockley states in thin metallic films and periodic nanostructures D Malterre, B Kierren, Y Fagot-Revurat, S Pons, A Tejeda, C Didiot, H Cercellier and A BendounanUltrafast energy flow in model biological membranes Marc Smits, Avishek Ghosh, Jens Bredenbeck, Susumu Yamamoto, Michiel Müller and Mischa BonnEpitaxy of GaN on silicon—impact of symmetry and surface reconstruction A Dadgar, F Schulze, M Wienecke, A Gadanecz, J Bläsing, P Veit, T Hempel, A Diez, J Christen and A KrostEffect of quantum confinement of surface electrons on adatom–adatom interactions V S Stepanyuk, N N Negulyaev, L Niebergall and P BrunoTemporal step fluctuations on a conductor surface: electromigration force, surface resistivity and low-frequency noise E D Williams, O Bondarchuk, C G Tao, W Yan, W G Cullen, P J Rous and T BoleSurface resonances on transition metals as low-dimensional model systems M Minca, S Penner, E Dona, A Menzel, E Bertel, V Brouet and J RedingerSymmetry breaking in few layer graphene films Aaron Bostwick, Taisuke Ohta, Jessica L McChesney, Konstantin V Emtsev, Thomas Seyller, Karsten Horn and Eli RotenbergMatthias Scheffler, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin, Germany Wolf-Dieter Schneider, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
Angewandte Chemie, Jan 25, 2008
arXiv (Cornell University), Jun 2, 2010
Israel Journal of Chemistry, Feb 21, 2023
Two‐dimensional oxide films are potentially useful for future technological applications, but als... more Two‐dimensional oxide films are potentially useful for future technological applications, but also important objects to study model catalyst systems on the more fundamental side. Here we study silica, germania, and mixed silica‐germania films supported on a metal single crystal surface Ru(0001). Those mixed films are interesting objects to systematically modify the properties of silica films, which may be used as membranes or covers for model studies in confined space, due to the modification of the rather stiff silica layers by incorporating germanium atoms replacing silicon atoms. Here we report a combined experimental and theoretical study of such layers, where we show how X‐ray photoelectron spectroscopy in combination with LEED and I/V LEEM measurements allow us to judge the formation of such mixed films.
New Journal of Physics, Dec 22, 2008
Basic research in surface and interface science is highly interdisciplinary, covering the fields ... more Basic research in surface and interface science is highly interdisciplinary, covering the fields of physics, chemistry, biophysics, geo-, atmospheric and environmental sciences, material science, chemical engineering, and more. The various phenomena are interesting by themselves, and they are most important in nearly all modern technologies, as for example electronic, magnetic, and optical devices, sensors, catalysts, lubricants, hard and thermal-barrier coatings,
Bulletin of the American Physical Society, Mar 17, 2010