Výsledky vyhledávání - "Alexander, Gottwald"

Akademický článek

Controlling the electronic and physical coupling on dielectric thin films

Autor: Philipp Hurdax, Michael Hollerer, Larissa Egger, Georg Koller, Xiaosheng Yang, Anja Haags, Serguei Soubatch, Frank Stefan Tautz, Mathias Richter, Alexander Gottwald, Peter Puschnig, Martin Sterrer, Michael G. Ramsey

Publikováno v: Beilstein Journal of Nanotechnology, Vol 11, Iss 1, Pp 1492-1503 (2020)

Ultrathin dielectric/insulating films on metals are often used as decoupling layers to allow for the study of the electronic properties of adsorbed molecules without electronic interference from the underlying metal substrate. However, the presence o

Externí odkaz: https://doaj.org/article/04a66bf8cce843d8b8bdd728d42b6562

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Akademický článek

Identifying surface reaction intermediates with photoemission tomography

Autor: Xiaosheng Yang, Larissa Egger, Philipp Hurdax, Hendrik Kaser, Daniel Lüftner, François C. Bocquet, Georg Koller, Alexander Gottwald, Petra Tegeder, Mathias Richter, Michael G. Ramsey, Peter Puschnig, Serguei Soubatch, F. Stefan Tautz

Publikováno v: Nature Communications, Vol 10, Iss 1, Pp 1-6 (2019)

Identifying reaction pathways is a major challenge in chemistry, and proves particularly difficult for surface reactions. Here the authors show that imaging the molecular orbitals with photoemission tomography provides insight into the structure of s

Externí odkaz: https://doaj.org/article/b672080f2bed4113a6b46f10bd031f74

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Precise optical constant determination in the soft x-ray, EUV, and VUV spectral range

Autor: Najmeh Abbasirad, Qais Saadeh, Richard Ciesielski, Alexander Gottwald, Vicky Philipsen, Igor Makhotkin, Andrey Sokolov, Michael Kolbe, Frank Scholze, Victor Soltwisch

Publikováno v: Metrology, Inspection, and Process Control XXXVII.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::59cad3d90fa91059975bec6b6b26d4b2
https://doi.org/10.1117/12.2659369

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Heterostructure Films of SiO2 and HfO2 for High-Power Laser Optics Prepared by Plasma-Enhanced Atomic Layer Deposition

Autor: Shawon Alam, Pallabi Paul, Vivek Beladiya, Paul Schmitt, Olaf Stenzel, Marcus Trost, Steffen Wilbrandt, Christian Mühlig, Sven Schröder, Gabor Matthäus, Stefan Nolte, Sebastian Riese, Felix Otto, Torsten Fritz, Alexander Gottwald, Adriana Szeghalmi

Publikováno v: Coatings
Volume 13
Issue 2
Pages: 278

Absorption losses and laser-induced damage threshold (LIDT) are considered to be the major constraints for development of optical coatings for high-power laser optics. Such coatings require paramount properties, such as low losses due to optical abso

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f7410488fc149f1737e6e5deec6afb3
https://publica.fraunhofer.de/handle/publica/437616

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Metrology with synchrotron radiation at PTB

Autor: Alexander Gottwald, Michael Krumrey, Frank Scholze, Mathias Richter

Publikováno v: The European Physical Journal Plus. 137

The Physikalisch-Technische Bundesanstalt (PTB) is the national metrology institute of the Federal Republic of Germany and has been using synchrotron radiation (SR) for more than 40 years. Starting at the former facility BESSY I, the storage ring BES

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6894689463fc1d52b44b31ece97cb91a
https://doi.org/10.1140/epjp/s13360-022-03417-9

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Akademický článek

Can photoemission tomography be useful for small, strongly-interacting adsorbate systems?

Autor: Larissa Egger, Bernd Kollmann, Philipp Hurdax, Daniel Lüftner, Xiaosheng Yang, Simon Weiss, Alexander Gottwald, Mathias Richter, Georg Koller, Serguei Soubatch, F Stefan Tautz, Peter Puschnig, Michael G Ramsey

Publikováno v: New Journal of Physics, Vol 21, Iss 4, p 043003 (2019)

Molecular orbital tomography, also termed photoemission tomography, which considers the final state as a simple plane wave, has been very successful in describing the photoemisson distribution of large adsorbates on noble metal surfaces. Here, follow

Externí odkaz: https://doaj.org/article/adc70b6a360d49c2a46a6d3161b0030d

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Charge‐Promoted Self‐Metalation of Porphyrins on an Oxide Surface

Autor: Christian S. Kern, Serguei Soubatch, Mathias Richter, Peter Puschnig, Anja Haags, Michael Hollerer, Xiaosheng Yang, Hannes Herrmann, F. Stefan Tautz, Georg Koller, Philipp Hurdax, Alexander Gottwald, Larissa Egger, Michael G. Ramsey, Martin Sterrer

Publikováno v: Angewandte Chemie / International edition 60(10), 5078-5082 (2021). doi:10.1002/anie.202015187
Angewandte Chemie / International edition 60(10), 5078-5082 (2020). doi:10.1002/anie.202015187
Angewandte Chemie (International Ed. in English)

Metalation and self‐metalation reactions of porphyrins on oxide surfaces have recently gained interest. The mechanism of porphyrin self‐metalation on oxides is, however, far from being understood. Herein, we show by a combination of results obtai

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::422f0f1edde8fe606e3997a5c6dff98f
https://doi.org/10.1002/anie.202015187

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