Explanipedia

“Oh yes, oh yes, these are the atoms!” A Personal Recollection from the Times of the Invention of the STM Open

Karl‐Heinz Rieder · 2012

The scanning tunneling microscope, invented and developed in the 1980s in the IBM research laboratory in Rüschlikon, has become the dominent scientific tool in surface science and together with its younger brother the atomic force microsco…

Electron Induced Ortho-Meta Isomerization of Single Molecules Open

Violeta Simic‐Milosevic, Michael Mehlhorn, Karl‐Heinz Rieder, Jörg Meyer, Karina Morgenstern · 2007

Materials science Physics Chemistry

A scanning tunneling microscope operating at 5 K is used to induce the isomerization of single chloronitrobenzene molecules on Cu(111) and verify the reaction. The threshold voltage of (227+/-7) mV for this reaction is explained based on e…

Novel Phonon Anomaly and Reconstruction in Hydrogen-Covered W(110) Open

Yoichi Yamada, Wolfgang Theis, Karl‐Heinz Rieder · 2006

Materials science Physics

Further hydrogen adsorption onto the hydrogen-covered W(110)-(1× 1) phase results in the reconstruction of the surface hydrogen layer with a sizable corrugation in one direction. The wave vector for the superstructure is found to be very c…

Long-range interaction of copper adatoms and copper dimers on Ag(1 1 1) Open

Karina Morgenstern, Karl‐Heinz Rieder · 2005

Physics Materials science Chemistry

Formation and motion of copper adatoms and addimers on Ag( 1 1 1) are investigated with low-temperature scanning tunnelling microscopy between 6 and 25 K. Adatoms move between fcc and hcp sites with a strong preference for the fcc site. Ad…

Disorder-induced local-density-of-states oscillations on narrow Ag(111) terraces Open

Karina Morgenstern, Karl‐Heinz Rieder, Gregory A. Fiete · 2005

Materials science Physics Chemistry

The local density of states of Ag(111) has been probed in detail on disordered terraces of varying width by dI/dV-mapping with a scanning tunneling microscope at low temperatures. Apparent shifts of the bottom of the surface-state band edg…

CO adsorption on a Cu(211) surface: First-principle calculation and STM study Open

Marek Gajdoš, A. Eichler, Jürgen Häfner, Gerhard Meyer, Karl‐Heinz Rieder · 2005

Physics Materials science Chemistry

Chemisorption of CO on the stepped Cu(211) surface is studied within\nab-initio density functional theory (DFT) and scanning tunneling microscopy\n(STM) imaging as well as manipulation experiments. Theoretically we focus on\nthe experiment…

Force induced and electron stimulated STM manipulations: routes to artificial nanostructures as well as to molecular contacts, engines and switches Open

Karl‐Heinz Rieder, Gerhard Meyer, Francesca Moresco, Karina Morgenstern, Saw‐Wai Hla , et al. · 2005

Chemistry Materials science Physics

Initially invented to image surfaces down to atomic scale, the scanning tunneling microscope (STM) has been further developed in the last few years to an operative tool, with which atoms and molecules can be manipulated at low substrate te…

Controlled Low-Temperature Molecular Manipulation of Sexiphenyl Molecules on Ag(111) Using Scanning Tunneling Microscopy Open

Saw‐Wai Hla, Kai‐Felix Braun, B. Wassermann, Karl‐Heinz Rieder · 2004

Materials science Physics

A novel scanning tunneling microscope manipulation scheme for a controlled molecular transport of weakly adsorbed molecules is demonstrated. Single sexiphenyl molecules adsorbed on a Ag(111) surface at 6 K are shot towards single silver at…

Snell’s Law for Surface Electrons: Refraction of an Electron Gas Imaged in Real Space Open

Jascha Repp, Gerhard Meyer, Karl‐Heinz Rieder · 2004

Physics Materials science Mathematics

On NaCl(100)/Cu(111) an interface state band is observed that descends from the surface-state band of the clean copper surface. This band exhibits a Moiré-pattern-induced one-dimensional band gap, which is accompanied by strong standing-wa…

Site Determination and Thermally Assisted Tunneling in Homogenous Nucleation Open

Jascha Repp, Gerhard Meyer, Karl‐Heinz Rieder, Per Hyldgaard · 2003

Materials science Chemistry Physics

A combined low-temperature scanning tunneling microscopy and density functional theory study on the binding and diffusion of copper monomers, dimers, and trimers adsorbed on Cu(111) is presented. Whereas atoms in trimers are found in fcc s…

Low-Temperature Scanning Tunneling Spectroscopy of Semiconductor Surfaces Open

R. M. Feenstra, G. Meyer, Francesca Moresco, Karl‐Heinz Rieder · 2003

Materials science Physics

Low-temperature scanning tunneling spectroscopy measurements on semiconductor surface are described. We consider both surface which do not possess surface states within the bulk bandgap, such as GaAs(110), and surfaces which do have states…

STM observations of a one-dimensional electronic edge state at steps on Cu(111) Open

Ludwig Bartels, Saw‐Wai Hla, Angelika Kühnle, G. Meyer, Karl‐Heinz Rieder , et al. · 2003

Materials science Physics Mathematics

Scanning tunneling microscopy measurements across isolated straight step edges on a Cu(111) surface were carried out for biases between 100 mV and 5 V. In addition to the well known surface state oscillations, and at lower sample bias than…

STM as an operative tool: physics and chemistry with single atoms and molecules Open

Karl‐Heinz Rieder, G. Meyer, Kai‐Felix Braun, Saw‐Wai Hla, Francesca Moresco , et al. · 2003

Physics Chemistry Materials science

STM as an operative tool: physics and chemistry with single atoms and molecules• Fig- 1: STM-image of the Brandenburg Gate constructed 01 .Cu( 211) with atomic precision using 48 CO-molecules using t!<.. technique of lateral manipulation.

Probing Local Surface Reactivity With Hydrogen Molecules-Realizing an Atom/Molecule Scanning Probe- Open

Wilson Agerico Diño, Hideaki Kasai, Ayao Okiji, Nelson Arboleda, Katsuyuki Fukutani , et al. · 2003

Materials science Chemistry Physics

We explore the feasibility of using hydrogen to probe local surface reactivity. To do this, we compare the dissociation dynamics of H2/Cu3Pt (111) [121] and H2/NiA1 (110) [110]. Calculation results show that the corresponding adsorption/st…

From atomic kinks to mesoscopic surface patterns: Ionic layers on vicinal metal surfaces Open

Stefan Fölsch, Andreas Riemann, Jascha Repp, G. Meyer, Karl‐Heinz Rieder · 2002

Materials science Chemistry Physics

A highly regular assembly of three-sided pyramids can be fabricated by growing the ionic insulator NaCl on the kinked metal surface Cu(532). Only two pyramid faces are covered by NaCl, resulting in an overall surface structure which is mod…

Atomic-Scale Structure of Dislocations Revealed by Scanning Tunneling Microscopy and Molecular Dynamics Open

J. Christiansen, Karina Morgenstern, Jakob Schiøtz, Karsten W. Jacobsen, Kai‐Felix Braun , et al. · 2002

Materials science Physics Chemistry

The intersection between dislocations and a Ag(111) surface has been studied using an interplay of scanning tunneling microscopy (STM) and molecular dynamics. Whereas the STM provides atomically resolved information about the surface struc…

Ionic Films on Vicinal Metal Surfaces: Enhanced Binding due to Charge Modulation Open

Jascha Repp, Stefan Fölsch, Gerhard Meyer, Karl‐Heinz Rieder · 2001

Materials science Chemistry Physics

NaCl films on Cu(311) exhibit a remarkably strong and localized binding between adlayer and substrate. The binding sites of the ions in the NaCl film with respect to the Cu surface are determined from atomically resolved scanning tunneling…

Substrate Mediated Long-Range Oscillatory Interaction between Adatoms: CuCu(111) Open

Jascha Repp, Francesca Moresco, Gerhard Meyer, Karl‐Heinz Rieder, Per Hyldgaard , et al. · 2000

Materials science Physics Mathematics

A quantitative study of the long-range interaction between single copper adatoms on Cu(111) mediated by the electrons in the two-dimensional surface-state band is presented. The interaction potential was determined by evaluating the distan…

Atomic-scale chemistry: Desorption of ammonia from Cu(111) induced by tunneling electrons Open

Ludwig Bartels, Martin Wolf, Tillmann Klamroth, Peter Saalfrank, Adolf Kühnle , et al. · 1999

Chemistry Materials science Physics

We report on excitation experiments on individual ammonia molecules adsorbed on Cu(111) using a low-temperature scanning tunneling microscope. Multiple electronic excitation of the ammonia–substrate bond can lead to the desorption of molec…

Dynamics of Electron-Induced Manipulation of Individual CO Molecules on Cu(111) Open

Ludwig Bartels, Georg Meyer, Karl‐Heinz Rieder, Dušan Velič, E. Knoesel , et al. · 1998

Physics Chemistry Sociology

Electrons tunneling from a scanning tunneling microscope tip to individual CO molecules on Cu(111) can cause their hopping from the surface to the tip if the bias exceeds a threshold of 2.4 V. Polarization- and time-resolved two-photon pho…

Basic Steps of Lateral Manipulation of Single Atoms and Diatomic Clusters with a Scanning Tunneling Microscope Tip Open

Ludwig Bartels, G. Meyer, Karl‐Heinz Rieder · 1997

Materials science Physics Chemistry

Detailed tip height measurements during manipulation of single atoms, molecules, and dimers on a Cu(211) surface reveal different manipulation modes depending on tunneling parameters. Both attractive (Cu, Pb, Pb dimers) and repulsive manip…

Nanostructures from Molecules Open

G. Meyer, B. Neu, Karl‐Heinz Rieder · 1995

Materials science Physics

Nanostructures from MoleculesRecent successes in creating structures from individual atoms and molecules at temperatures appreciably above 4 K give rise to the hope that they will be built and used routinely to investigate fundamental phen…

A novel ultrahigh vacuum scanning tunneling microscope for surface science studies Open

Oliver Haase, M. Borbonus, Paul Muralt, R. Koch, Karl‐Heinz Rieder · 1990

Materials science Chemistry Physics

A novel design of a scanning tunneling microscope (STM) for surface science studies is described. The STM is fully compatible with ultrahigh vacuum (UHV) and offers the possibility of performing individual STM scans over a large region of …

Vergleichende optische Untersuchungen an modifizierten Gelatinen und an Kalbshautkollagen Open

Andreas Gardi, Hs. Nitschmann, Karl‐Heinz Rieder · 1973

Chemistry Physics Biology

Results of optical measurements (UV and CD) on gelatin with intracatenar cross-links, on a number of otherwise modified gelatins and on citrate-soluble calf skin collagen in dependence of the temperature are presented. From these results, …

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