H
Horst Neumann
Researcher at Leibniz Association
Publications - 143
Citations - 2862
Horst Neumann is an academic researcher from Leibniz Association. The author has contributed to research in topics: Ion beam & Sputtering. The author has an hindex of 24, co-authored 139 publications receiving 2611 citations. Previous affiliations of Horst Neumann include Leibniz Institute for Neurobiology.
Papers
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Journal ArticleDOI
Infrared dielectric functions and phonon modes of high-quality ZnO films
N. Ashkenov,B. N. Mbenkum,Carsten Bundesmann,V. Riede,Michael Lorenz,Daniel Spemann,E. M. Kaidashev,E. M. Kaidashev,A. Kasic,Mathias Schubert,Marius Grundmann,Gerald Wagner,Horst Neumann,Vanya Darakchieva,Hans Arwin,Bo Monemar +15 more
TL;DR: In this paper, a single crystalline and highly resistive wurtzite ZnO films were obtained from infrared (300-1200 cm−1) spectroscopic ellipsometry and Raman scattering studies.
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Ripple rotation, pattern transitions, and long range ordered dots on silicon by ion beam erosion
TL;DR: In this article, the importance of the ion incidence angle in self-organized pattern formation during low energy Xe+ ion beam erosion of silicon is elaborated, and the angular distribution of ions within the ion beam is explored as an additional parameter controlling the evolution of the surface topography.
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Sputter process diagnostics by negative ions
TL;DR: In this article, the authors measured the energy distributions of negative ions during reactive sputtering of silicon in oxygen, and determined the origin of each ion from peak structures in the energy distribution.
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Anisotropy of boron nitride thin-film reflectivity spectra by generalized ellipsometry
TL;DR: In this article, generalized variable angle spectroscopic ellipsometry (gVASE) over the photon energy range from 1.5 to 3.5 eV has been used to study and distinguish the hexagonal and cubic phases of boron nitride in thin films (50-500 nm) deposited by magnetron sputtering onto (100) silicon.
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Infrared dielectric functions and phonon modes of wurtzite MgxZn1−xO (x⩽0.2)
Carsten Bundesmann,M. Schubert,Daniel Spemann,Tilman Butz,Michael Lorenz,E. M. Kaidashev,Marius Grundmann,N. Ashkenov,Horst Neumann,Gerald Wagner +9 more
TL;DR: In this paper, a two-mode behavior was found for the modes with E1 symmetry, a lattice mode and an impurity-type mode are obtained for the A1 symmetry phonons.