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Fachgebiet
Technische Physik I / Oberflächenphysik

headerphoto Fachgebiet 
Technische Physik I / Oberflächenphysik
Ansprechpartner

Prof. Dr. Jörg Kröger

Arbeitsgruppenleiter

Telefon +49 3677 693609

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INHALTE

Prof. Dr. J. Kröger

2014

1. T. Sachse, N. Néel, S. Meierott, R. Berndt, W. A. Hofer, J. Kröger
Electronic and magnetic states of Mn2 and Mn2H on Ag(111)
New J. Phys. 16, 063021 (2014)

2013

3. M. Endlich, A. Molina-Sánchez, L. Wirtz, J. Kröger
Screening of electron-phonon coupling in graphene on Ir(111)
Phys. Rev. B 88, 205403 (2013)

2. A. Sperl, J. Kröger, R. Berndt
Oberflächenchemie Atom für Atom
Chem. unserer Zeit 47, 296 (2013)

1. N. Néel, S. Schröder, N. Ruppelt, P. Ferriani, J. Kröger, R. Berndt, S. Heinze
Tunneling Anisotropic Magnetoresistance at the Single-Atom Limit
Phys. Rev. Lett. 110, 037202 (2013)

2012

7. Y. F. Wang, K. Wu, J. Kröger, R. Berndt
Structures of phthalocyanine molecules on surfaces studied by STM
AIP Advances 2, 041402 (2012)

6. C. Lazo, N. Néel, J. Kröger, R. Berndt, S. Heinze
Tunneling magnetoresistance and exchange interaction in single-atom contacts
Phys. Rev. B 86, 180406(R) (2012)

5. Y. F. Wang, N. Néel, J. Kröger, H. Vázquez, M. Brandbyge, B. Wang, R. Berndt
A three-state single molecular junction
J. Phys.: Condens. Matter 24, 394012 (2012)

4. M. Jahn, M. Müller, M. Endlich, N. Néel, J. Kröger, V. Chis, B. Hellsing
Oxygen vibrations and acoustic surface plasmon on Be(0001)
Phys. Rev. B 86, 085453 (2012) 

3. S. J. Altenburg, J. Kröger, T. O. Wehling, B. Sachs, A. I. Lichtenstein, R. Berndt
Local gating of an Ir(111) surface resonance by graphene islands
Phys. Rev. Lett. 108, 206805 (2012)

2. N. Néel, P. Ferriani, M. Ziegler, S. Heinze, J. Kröger, R. Berndt
Energy-resolved spin-polarized tunneling and exchange coupling of  Co and Cr atoms on Fe islands on W(110)
Phys. Rev. B 85, 155406 (2012)

1. H. Zheng, J. Kröger, R. Berndt
 Spectroscopy of single donors at ZnO(0001) surfaces
 Phys. Rev. Lett. 108, 076801 (2012)

 

2011

7. N. Néel, J. Kröger, R. Berndt
Two-Level Conductance Fluctuations of a Single-Molecule Junction
Nano Lett. 11, 3593 (2011)

6. N. Néel, R. Berndt, J. Kröger, T. O. Wehling, A. I. Lichtenstein, M. I. Katsnelson
Two-Site Kondo Effect in Atomic Chains
Phys. Rev. Lett. 107, 106804(2011)

5. M. Ziegler, N. Néel, C. Lazo, P. Ferriani, S. Heinze, J. Kröger, R. Berndt
Spin valve effect in single-atom contacts
New J. Phys. 13, 085011 (2011)

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4. A. Sperl, J. Kröger, R. Berndt
Demetalation of a single organometallic complex
J. Am. Chem. Soc. 133, 11007 (2011)

highlighted by Chemistry World

3. T. G. Gopakumar, T. Brumme, J. Kröger, C. Toher, G. Cuniberti, R. Berndt
Coverage-driven electronic decoupling of Fe-Phthalocyanine from a Ag(111) substrate
J. Phys. Chem. C 115, 12173 (2011)

2. A. Sperl, J. Kröger, R. Berndt
Electronic Superstructure of Lead Phthalocyanine on Lead Islands
J. Phys. Chem. A 115, 6973 (2011)

1. A. Sperl, J. Kröger, R. Berndt
Controlled Metalation of a Single Adsorbed Phthalocyanine
Angew. Chem. Int. Ed. 50, 5294 (2011)

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highlighted by Nature Chemistry

2010

10. N. Néel, J. Kröger, R. Berndt
Kondo effect of a Co atom on Cu(111) in contact with an iron tip
Phys. Rev. B 82, 233401 (2010).

9. S. J. Altenburg, J. Kröger, B. Wang, M.-L. Bocquet, N. Lorente, R. Berndt
Graphene on Ru(0001): Contact Formation and Chemical Reactivity on the Atomic Scale
Phys. Rev. Lett. 105, 236101 (2010).

8. T. G. Gopakumar, F. Matino, B. Schwager, A. Bannwarth, F. Tuczek, J. Kröger, R. Berndt
Coverage Driven Formation of Homochiral Domains of an Achiral Molecule on Au(111)
J. Phys. Chem. C 114, 18247 (2010)

7. Y. F. Wang, J. Kröger, R. Berndt, H. Tang
Molecular Nanocrystals on Ultrathin NaCl Films on Au(111)
J. Am. Chem. Soc. 132, 12546 (2010).

6.  Y. F. Wang, J. Kröger, R. Berndt, H. Vázquez, M. Brandbyge, M. Paulsson
Atomic-scale control of electron transport through single molecules
Phys. Rev. Lett. 104, 176802 (2010)

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5.  A. Sperl, J. Kröger, R. Berndt
Conductance of Ag atoms and clusters on Ag(111): Spectroscopic and time-resolved data
Phys. Status Solidi 247, 1077 (2010).

4.  M. Ziegler, N. Ruppelt, N. Néel, J. Kröger, R. Berndt
Control of spin-polarized current in a scanning tunneling microscope by single-atom transfer
Appl. Phys. Lett. 96, 132505 (2010).

3.  A. Sperl, J. Kröger, R. Berndt
Direct observation of conductance fluctuations of a single-atom tunneling contact
Physical Review B 81, 035406-1 – 035406-6 (2010).

2.  R. Berndt, J. Kröger, N. Néel, G. Schull
Controlled single atom and single molecule contacts
Physical Chemistry and Chemical Physics 12, 1022 – 1032 (2010).

1.  J. Kröger, Y. F. Wang, N. Néel, R. Berndt
Molecular switches on surfaces explored with a scanning tunneling microscope in Molecular and Electronic Devices,
edited by D. K. Aswal and J. V. Yakhmi (Nova Science Publishers, 2010), Ch. 3.

2009

12. J. Kröger, A. Sperl, N. Néel, R. Berndt
Scanning tunneling microscopic investigations into the conductance of single-atom junctions
Journal of Scanning Probe Microscopy 4, 49 - 65 (2009).

11.  M. Ziegler, N. Néel, A. Sperl, J. Kröger, R. Berndt
Local density of states from constant-current tunneling spectra
Physical Review B 80, 125402-1 – 125402-6 (2009).

10.  T. G. Gopakumar, N. Néel, J. Kröger, R. Berndt
Spatial Localization of Electronic States in a Moiré  Pattern
Chemical Physics Letters 484, 59 – 63 (2009).

9.  J. Kröger, N. Néel, A. Sperl, Y. Wang, R. Berndt
Single-Atom contacts with a scanning tunnelling microscope
New Journal of Physics 11, 125006-1 – 125006-10 (2009).

8.  Y. F. Wang, X. Ge, C. Manzano, J. Kröger, R. Berndt, W. A. Hofer, H. Tang, J. Cerda
Supramolecular patterns controlled by electron interference and direct intermolecular interactions
Journal of the American Chemical Society 131, 10400 – 10402 (2009).

7.  A. Sperl, J. Kröger, R. Berndt, A. Franke, E. Pehlke
Evolution of unoccupied resonance during the synthesis of a silver dimer on Ag(111)
New Journal of Physics 11, 063020-1 – 063020-8 (2009).

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6.  N. Néel, J. Kröger, R. Berndt
Local heating at a ferromagnet-metal interface
Applied Physics Letters 95, 203103-1 – 203103-3 (2009).

5.  N. Hauptmann, M. Becker, J. Kröger, R. Berndt
Surface reconstruction and energy gap of superconducting V3Si(001)
Physical Review B 79, 144522-1 – 144522-7 (2009).

4.  Y. Wang, J. Kröger, R. Berndt, W. Hofer
Pushing and pulling a Sn ion through an adsorbed phthalocyanine molecule
Journal of the American Chemical Society 131, 3639 – 3643 (2009).

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3.  N. Néel, J. Kröger, R. Berndt
Quantized conductance of a single magnetic atom
Physical Review Letters 102, 086805-1 – 086805-4 (2009).

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2.  M. Ziegler, J. Kröger, R. Berndt, A. G. Borisov, J. P. Gauyacq
Linewidth of a Cesium Adatom Resonance on Ag(111)
Physical Review B 79, 075401-1 – 075401-5 (2009).

1.  Y. Wang, J. Kröger, R. Berndt, W. Hofer
Structural and electronic properties of ultrathin SnPc films on Ag(111) at the single molecule level
Angewandte Chemie International Edition 48, 1261 – 1265 (2009).

2008

14.  N. Néel, J. Kröger, L. Limot, R. Berndt
Conductance of single atoms and molecules studied with a scanning tunnelling microscope
Journal of Scanning Probe Microscopy 3, 1 – 8 (2008).

13.  M. Ziegler, J. Kröger, R. Berndt, A. Filinov, M. Bonitz
Scanning tunneling microscopy and kinetic Monte-Carlo investigation of cesium superlattices on Ag(111)
Physical Review B 78, 245427-1 – 245427-7 (2008).

12.  N. Néel, J. Kröger, R. Berndt, T. O. Wehling, A. I. Lichtenstein, M. I. Katsnelson
Controlling the Kondo effect of CoCun clusters atom by atom
Physical Review Letters 101, 266803-1 – 266803-4 (2008).

11.  N. Néel, J. Kröger, R. Berndt, E. Pehlke
Spectroscopy of an atom between two electrodes
Physical Review B 78, 233402-1 – 233402-4 (2008).

10.  R. Berndt, J. Kröger
Dynamics of electronic states at metal surfaces
Handbook of Surface Science 3, 525 – 574 (2008).

9.  T. Uchihashi, J. Zhang, J. Kröger, R. Berndt
Quantum modulation of the Kondo resonance of Co adatoms on Cu/Co/Cu(100)
Physical Review B 78, 033402-1 – 033402-4 (2008).

8.  G. Schull, N. Néel, M. Becker, J. Kröger, R. Berndt
Spatially resolved conductance of oriented C60
New Journal of Physics 10, 065012-1 – 065012-9 (2008).

7.  N. Néel, J. Kröger, L. Limot, R. Berndt
Conductance of oriented C60 molecules
Nano Letters 8, 1291 – 1295 (2008).

6.  J. Kröger
Nonadiabatic effects on surfaces: Kohn anomaly, electronic damping of adsorbate vibrations, and local heating of single molecules
Journal of Physics: Condensed Matter 20 224015-1 – 224015-9. (2008).

5.  J. Kröger, N. Néel, L. Limot
Contact to single atoms and molecules with the tip of a scanning tunnelling microscope
Journal of Physics: Condensed Matter 20, 223001-1 – 223001-16 (2008).

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4.  N. Néel, L. Limot, J. Kröger, R. Berndt
Rotation of C60 in a single-molecule contact
Physical Review B 77, 125431-1 – 125431-5 (2008).

3.  A. Sperl, J. Kröger, N. Néel, H. Jensen, R. Berndt, A. Franke, E. Pehlke
Unoccupied states of individual silver clusters and chains on Ag(111)
Physical Review B 77, 085422-1 – 085422-7 (2008).

2.  P. Schmidt, J. Kröger, B. M. Murphy, R. Berndt
Mott-Hubbard transition on 1T-TaS2 induced by rubidium adsorption
New Journal of Physics 10, 013022-1 – 013022-7 (2008).

1.  F. Schiller, M. Ruiz-Osés, J. E. Ortega, P. Segovia, J. Martínez-Blanco, B. Doyle, V. Pérez-Dieste, J. Lobo, N. Néel, R. Berndt, J. Kröger
Reply to Comment on Electronic structure of Au(887)-C60
The Journal of Chemical Physics 128, 037101-1 – 037101-2 (2008).

2007

9.  H. Jensen, J. Kröger, N. Néel, R. Berndt
Silver oligomer and single fullerene electronic properties revealed by a scanning tunnelling microscope
The European Physical Journal D 45, 465 – 469 (2007).

8.  J. Kröger,M. Becker, H. Jensen, Th. von Hofe, N. Néel, L. Limot, J. Kliewer, R. Berndt, S. Crampin, E. Pehlke, C. Corriol,
V. M. Silkin, D. Sánchez-Portal, A. Arnau, E. V. Chulkov, P. M. Echenique
Dynamics of surface-localised electronic excitations studied with the scanning tunnelling microscope
Progress in Surface Science 82, 293 – 312 (2007).

7.  J. Kröger, H. Jensen, R. Berndt
Conductance of tip-surface and tip-atom junctions on Au(111) explored by a scanning tunnelling microscope
New Journal of Physics 9, 153-1 – 153-9 (2007).

6.  N. Néel, J. Kröger, L. Limot, T. Frederiksen, M. Brandbyge, R. Berndt
Controlled contact to a C60 molecule
Physical Review Letters 98, 065502-1 – 065502-4 (2007).

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5.  N. Néel, J. Kröger, L. Limot, K. Palotas, W. A. Hofer, R. Berndt
Conductance and Kondo effect in a controlled single-atom contact
Physical Review Letters 98, 016801-1 – 016801-4 (2007).

4.  J. Kröger, H. Jensen, N. Néel, R. Berndt
Self-organization of cobalt-phthalocyanine on a vicinal gold surface revealed by scanning tunnelling microscopy
Surface Science 601, 4180 – 4184 (2007).

3.  J. Kröger, H. Jensen, R. Berndt, R. Rurali, N. Lorente
Molecular orbital shift of perylenetetracarboxylic-dianhydride on gold
Chemical Physics Letters 438, 249 – 253 (2007).

2.  J. Kröger
Phonons and Electrons at Metal Surfaces
Applied Physics A 87, 345 – 350 (2007).

1.  N. Néel, J. Kröger, L. Limot, R. Berndt
Conductance of single atoms and molecules studied with a scanning tunnelling microscope
Nanotechnology 18, 044027-1 – 044027-3 (2007).

2006

7.  P. Schmidt, B. Murphy, J. Kröger, H. Jensen, R. Berndt
Structure of in vacuo Rb intercalated 1T -TaS2
Physical Review B 74, 193407-1 – 193407-4 (2006).

6.  F. Schiller, M. Ruiz-Osés, J. E. Ortega, P. Segovia, J. Martínez-Blanco, B. Doyle, V. Pérez-Dieste, J. Lobo, N. Néel, R. Berndt, J. Kröger
Electronic structure of Au(887)-C60
The Journal of Chemical Physics 125, 144719-1 – 144719-6 (2006).

5.  Th. von Hofe, J. Kröger, R. Berndt
Adsorption geometry of Cu(111)-Cs studied by scanning tunneling microscopy
Physical Review B 73, 245434-1 – 245434-7 (2006).

4.  N. Néel, J. Kröger, R. Berndt
Fullerene nanowires on a vicinal gold surface
Applied Physics Letters 88, 163101-1 – 163101-3 (2006).

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3.  J. Kröger, N. Néel, H. Jensen, R. Berndt, R. Rurali, N. Lorente
Molecules on vicinal Au surfaces studied by STM
Journal of Physics: Condensed Matter 18, S51 – S56 (2006).

2.  J. Kröger
Electron-phonon coupling at metal surfaces
Reports on Progress in Physics 69, 899 – 969 (2006).

1.  N. Néel, J. Kröger, R. Berndt
Highly periodic fullerene nanomesh
Advanced Materials 18, 174 – 177 (2006).

2005

8.  J. Kröger, L. Limot, H. Jensen, R. Berndt, S. Crampin, E. Pehlke
Surface state electron dynamics of clean and adsorbate-covered metal surfaces studied with the scanning tunnelling microscope
Progress in Surface Science 80, 26 – 48 (2005).

7.  C. Corriol, V. M. Silkin, D. Sánchez-Portal, A. Arnau, E. V. Chulkov, P. M. Echenique, T. von Hofe, J. Kliewer, J. Kröger,
R. Berndt
Role of elastic scattering in electron dynamics at ordered alkali overlayers on Cu(111)
Physical Review Letters 95, 176802-1 – 176802-4 (2005).

6.  S. Crampin, H. Jensen, J. Kröger, L. Limot, R. Berndt
Resonator design for surface electron lifetime studies using scanning tunneling spectroscopy
Physical Review B 72, 035443-1 – 035443-6 (2005).

5.  S. Crampin, J. Kröger, H. Jensen, R. Berndt
Phase coherence length and quantum interference patterns at step edges
Physical Review Letters 95, 029701 (2005).

4.  L. Limot, J. Kröger, R. Berndt, A. Garcia-Lekue, W. A. Hofer
Atom Transfer and Single-Adatom Contacts
Physical Review Letters 94, 126102-1 – 126102-4 (2005).

3.  H. Jensen, J. Kröger, R. Berndt, S. Crampin
Electron dynamics in vacancy islands
Physical Review B 71, 155417-1 – 155417-5 (2005).

2.  L. Limot, E. Pehlke, J. Kröger, R. Berndt
Surface-State Localization at Adatoms
Physical Review Letters 94, 036805-1 – 036805-4 (2005).

1.  J. Kröger, H. Jensen, Th. Jürgens, Th. von Hofe, J. Kuntze, R. Berndt
Adsorption geometry of PTCDA on 2H-NbSe2
Applied Physics A 81, 1285 – 1289 (2005).

2004

3.  C. Cepek, I. Vobornik, A. Goldoni, E. Magnano, G. Salvaggi, J. Kröger, G. Panaccione, G. Rossi, M. Sancrotti
Reply to comment on Temperature-dependent Fermi gap opening in the c(6 × 4)C60/Ag(100) twodimensional superstructure
Physical Review Letters 93, 119702 (2004).

2.  J. Kröger, L. Limot, H. Jensen, R. Berndt, P. Johansson
Stark effect of the Au(111) and Cu(111) surface states
Physical Review B 70, 033401-1 – 033401-4 (2004).

1.  J. Kröger, S. Lehwald, H. Ibach
Estimation of the electron-phonon coupling parameter of Mo(110)-H and W(110)-H
Physical Review B 69, 201404(R)-1 – 201404(R)-4 (2004).

2003

2.  J.  Kröger, J. Kuntze, A.  Atrei, B.  Cortigiani, U. Bardi, G. Rovida
Adsorption geometry of sulfur on Ir(110)-c(4×6)S
Surface Science 539, L537 – L541 (2003).

1.  J. Kröger, S. Lehwald, H. Ibach
Surface dynamics of Mo(110)-H and Mo(110)-Li
Surface Science 530, 170 – 174 (2003).

2002

2.  J. Kröger, S. Lehwald, M. Balden, H. Ibach
Anomalous dispersion of adsorbate phonons of Mo(1110)-H
Physical Review B 66, 073414-1 – 073414-4 (2002).

1.  G. Hoffmann, J. Kröger, R. Berndt
Color imaging with a low temperature scanning tunneling microscope
Review of Scientific Instruments 73, 305 – 309, (2002).

2001

3.  C. Cepek, I. Vobornik, A. Goldoni, E. Magnano, G. Salvaggi, J. Kröger, G. Panaccione, G. Rossi, M. Sancrotti
Temperature-dependent Fermi gap opening in the c(6×4)C60/Ag(100) two-dimensional superstructure
Physical Review Letters 86, 3100 – 3103 (2001).

2.  J. Kröger, T. Greber, T. J. Kreutz, J. Osterwalder
The photoemission Fermi edge as a sample thermometer?
Journal of Electron Spectroscopy and Related Phenomena 113, 241 – 251 (2001).

1.  J. Osterwalder, T. Greber, J. Kröger, J. Wider, H. -J. Neff, F. Baumberger, M. Hoesch, W.Auwärter, R. Fasel, P. Aebi
Surface States on Clean and Adsorbate-Covered Metal Surfaces
Edt. J. L. Mor´an-L´opez, Kluwer Academic / Plenum Publishers, New York (2001).

2000

3.  J. Kröger, T.  Greber, J. Osterwalder
Fermi surface contours of p(2 × 2)O/Mo(110): an angle-resolved photoelectron spectroscopy study
Surface Science 459, 173 – 182 (2000).

2.  J. Kröger, S. Lehwald, D. Bruchmann, H. Ibach
Adsorption of lithium on Mo(110): an EELS study of the adsorbate vibrations and substrate phonons
Surface Science 449, 227 – 235 (2000).

1.  J. Kröger, T. Greber, J. Osterwalder
Angle-resolved photoemission study of clean and hydrogen saturated Mo(110)
Physical Review B 61, 14146 – 14156 (2000).

1998

2.  J. Kröger, S. Lehwald, H. Ibach
Adsorbate vibrations and substrate surface phonons of p(2×2)O/Mo(110)
Physical Review B 58, 1578 – 1585 (1998).

1.  J. Kröger, S. Lehwald, H. Ibach
Substrate surface phonons of (1×1)H/Mo(110) and p(2×2)O/Mo(110) - a critical comparison
Surface Science 402-404, 496 – 501 (1998).

1997

1.  J. Kröger, S. Lehwald, H. Ibach
EELS-study of the clean and hydrogen-covered Mo(110) surface
Physical Review B 55, 10895 – 10904 (1997).