Zobrazeno 1 - 10
of 73
pro vyhledávání: '"W. Hebenstreit"'
Publikováno v:
Surface Science. 547:394-402
Scanning tunnelling microscopy (STM) was used to study the (1 1 0) surface of a VC 0.8 sample. The surface shows a missing-row reconstruction, i.e., a grating structure with ridges and valleys oriented along the [0 0 1] direction and (1 0 0) and (0 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e7ecf04df9724acd7cc55a1f6d34723
https://doi.org/10.1016/j.susc.2003.10.016
https://doi.org/10.1016/j.susc.2003.10.016
Publikováno v:
Surface Science. 466:155-166
Segregation and chemical ordering on Pt25Co75(111) are studied by quantitative low-energy electron diffraction (LEED) analysis and scanning tunnelling microscopy (STM). Although LEED patterns do not show any sign of superstructure, LEED calculations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f69916e5b80ed3305df33c54d912724
https://doi.org/10.1016/s0039-6028(00)00751-2
https://doi.org/10.1016/s0039-6028(00)00751-2
Publikováno v:
Surface Science. 441:441-453
Scanning tunnelling microscopy images with chemical contrast allowed the direct determination of the composition and short-range order behaviour of the clean Pt 25 Rh 75 (111), (110), and (100) alloy surfaces. All measurements were performed at room
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba359f7825743c63837c73d68c8b97e9
https://doi.org/10.1016/s0039-6028(99)00880-8
https://doi.org/10.1016/s0039-6028(99)00880-8
Publikováno v:
Surface Science. 424:L321-L328
Atomically resolved scanning tunneling microscopy (STM) of ultra-thin NaCl films on Al(111) and Al(100) demonstrates that only one atomic species of NaCl is imaged as a protrusion. By comparison of the constant current STM images with ab initio calcu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f8a55ff778a0f5abbd82494cc28e703
https://doi.org/10.1016/s0039-6028(99)00095-3
https://doi.org/10.1016/s0039-6028(99)00095-3
Autor:
M. Pinczolits, Peter Varga, G. Leonardelli, Michael Schmid, W. Hebenstreit, M. Sporn, E. Platzgummer
Publikováno v:
Physical Review Letters. 82:355-358
Using scanning tunneling microscopy, low-energy ion scattering, and quantitative low-energy electron diffraction, we find about $17%$ metal vacancies on the oxygen-covered Cr(100) surface. The oxygen atoms occupy all the hollow sites of the first lay
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df809af4589d5efaa2ebe2233fb889e9
https://doi.org/10.1103/physrevlett.82.355
https://doi.org/10.1103/physrevlett.82.355
Publikováno v:
Faraday Discussions. 114:245-258
The rutile TiO2(110) (1×1) surface is considered the prototypical ‘well-defined’ system in the surface science of metal oxides. Its popularity results partly from two experimental advantages: (i) bulk-reduced single crystals do not exhibit charg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82668a2e114b1c355aaac6a11723fe9d
https://doi.org/10.1039/a903598b
https://doi.org/10.1039/a903598b
Autor:
Talib Mahmoud, Markus Kuhn, G. Leonardelli, W. Hebenstreit, Ulrike Diebold, Jeremiah Lehman, Michael Schmid, Peter Varga
Publikováno v:
Surface Science. 411:137-153
We report a scanning tunneling microscopy (STM) study of the rutile TiO2(110) surface. The surface was prepared by sputtering and annealing in an ultrahigh vacuum (UHV). After annealing to 1100 K in UHV, a (1×1) surface with a terrace width of ∼10
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee795a681a41f9ae4ba860b39b496a5a
https://doi.org/10.1016/s0039-6028(98)00356-2
https://doi.org/10.1016/s0039-6028(98)00356-2
Autor:
Peter Varga, Michael Schmid, Werner A. Hofer, G. Ritz, W. Hebenstreit, Raimund Podloucky, Josef Redinger
Publikováno v:
Surface Science. 405:L514-L519
Recent STM studies achieved chemical resolution on PtRh and PtNi alloy surfaces. By a first-principles method employing the Tersoff–Hamann model, we have simulated STM scans on PtRh and PtNi(100) surfaces by calculating the apparent heights of indi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::653572e766353d7307b5d92c22f710af
https://doi.org/10.1016/s0039-6028(98)00140-x
https://doi.org/10.1016/s0039-6028(98)00140-x
Autor:
R. Baudoing-Savois, Michael Schmid, P. Dolle, Y. Gauthier, Peter Varga, E. Platzgummer, W. Hebenstreit
Publikováno v:
Surface Science. 396:137-155
The surface of a disordered Pt25Co75(100) alloy has been investigated using quantitative LEED, AES and UHV-STM at room temperature. Atomic-resolution images reveal that it reconstructs with close-packed rows shifted by half the interatomic distance,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b93a3fe2b37562c21e9bdbf417eb588a
https://doi.org/10.1016/s0039-6028(97)00665-1
https://doi.org/10.1016/s0039-6028(97)00665-1
Autor:
E. Platzgummer, Michael Schmid, Peter Varga, W. Hofer, M. Pinczolits, W. Hebenstreit, M. Sporn
Publikováno v:
Surface Science. 396:78-86
We present a LEED I-V analysis of c(2 × 2)-NCr(100). We found nitrogen residing in fourfold hollow sites and exclude adsorption models in which nitrogne adsorbs on a metal site (on-top, substitutional or second-layer interstitial). We achieved a Pen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03e15223776e42a0452c7b3dd5c8089d
https://doi.org/10.1016/s0039-6028(97)00660-2
https://doi.org/10.1016/s0039-6028(97)00660-2