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Dive into the research topics where G. Falkenberg is active.

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Featured researches published by G. Falkenberg.


Surface Science | 1995

Gold-induced facetting of Si(111)

L. Seehofer; S. Huhs; G. Falkenberg; R.L. Johnson

Abstract We report an STM investigation of the morphology of Au-covered vicinal Si(111) surfaces. High-resolution STM images of the Si(111)(5 × 2)-Au reconstruction are presented and compared to various structural models. Depending on coverage, annealing temperature, and inclination angle of the substrate surface we observed the occurrence of two different high-Miller-index Si facets which are stabilized by Au, namely a (2 × 1) reconstructed (775) facet and a (3 × 1) reconstructed (995) facet. A comparison of high-resolution STM images of the facets with images of the (5 × 2) reconstruction of the (111) terraces indicates that the different structures are closely related.


Physical Review Letters | 1999

Phase Transitions in Two Dimensions: The Case of Sn Adsorbed on Ge(111) Surfaces

Oliver Bunk; J H Zeysing; G. Falkenberg; R.L. Johnson; M. Nielsen; Martin Meedom Nielsen; Robert Feidenhans'l

Accurate atomic coordinates of the room-temperature (


Applied Surface Science | 1998

Structure determination of the indium induced Si(001)-(4 × 3) reconstruction by surface X-ray diffraction and scanning tunneling microscopy

Oliver Bunk; G. Falkenberg; L. Seehofer; J H Zeysing; R.L. Johnson; M. Nielsen; R. Feidenhans'l; E. Landemark

\sqrt{3}\ifmmode\times\else\texttimes\fi{}\sqrt{3}


Surface Science | 1998

Solution of Ge(111)-(4 × 4)-Ag structure using direct methods applied to X-ray diffraction data

C. Collazo-Davila; D. Grozea; Laurence D. Marks; Robert Feidenhans'l; M. Nielsen; L. Seehofer; L. Lottermoser; G. Falkenberg; R.L. Johnson; Mats Göthelid; Ulf O. Karlsson

)


Applied Surface Science | 1999

Structure determination of the indium-induced Ge(103)-(1×1) reconstruction by surface X-ray diffraction

Oliver Bunk; G. Falkenberg; J H Zeysing; L. Lottermoser; R.L. Johnson; M. Nielsen; F Berg-Rasmussen; R. Feidenhans'l

R30\ifmmode^\circ\else\textdegree\fi{}


Surface Science | 1995

Domain wall structure of Si(111) (√3 × √3)R30°-Au

J. Falta; A Hille; D Novikov; G. Materlik; L. Seehofer; G. Falkenberg; R.L. Johnson

and low-temperature (


Surface Science | 1997

Structure and morphology of In on Ge(001) studied by scanning tunneling microscopy

G. Falkenberg; L. Seehofer; R.L. Johnson

3\ifmmode\times\else\texttimes\fi{}3


Surface Science | 1994

STM study of the incommensurate structures of Pb on Ge(111) and Si(111) surfaces

L. Seehofer; D. Daboul; G. Falkenberg; R.L. Johnson

) phases of


Surface Science | 1996

Atomic motion on the CdTe(001) surface observed with scanning tunneling microscopy

L. Seehofer; V.H. Etgens; G. Falkenberg; M.B. Veron; D. Brun; B. Daudin; S. Tatarenko; R.L. Johnson

1/3


Surface Science | 1997

Changes in the surface morphology of Ge(001) due to Sb adsorption

G. Falkenberg; L. Seehofer; R.L. Johnson

monolayer Sn on Ge(111) have been established by grazing-incidence x-ray diffraction with synchrotron radiation. The Sn atoms are located solely at

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M. Nielsen

Brookhaven National Laboratory

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D. Daboul

University of Hamburg

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