Search Results - "Breuer, U"

Tensely strained GeSn alloys as optical gain media by Wirths, S., Ikonic, Z., Tiedemann, A. T., Holländer, B., Stoica, T., Mussler, G., Breuer, U., Hartmann, J. M., Benedetti, A., Chiussi, S., Grützmacher, D., Mantl, S., Buca, D.

“…This letter presents the epitaxial growth and characterization of a heterostructure for an electrically injected laser, based on a strained GeSn active well…”
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Design of defect-chemical properties and device performance in memristive systems by Lübben, M., Cüppers, F., Mohr, J., von Witzleben, M., Breuer, U., Waser, R., Neumann, C., Valov, I.

“…Impurities and dopants in memristive devices determine their switching kinetics, performance, and neuromorphic functionalities. Future development of the…”
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Evaluation of the high temperature oxidation of W-Cr-Zr self-passivating alloys by Tan, X.Y., Klein, F., Litnovsky, A., Wegener, T., Schmitz, J., Linsmeier, Ch, Coenen, J.W., Breuer, U., Rasinski, M., Li, P., Luo, L.M., Wu, Y.C.

“…[Display omitted] •W-11.2Cr-1.7 Zr presents the optimal oxidation resistance.•The addition of Zr can improve the high temperature oxidation resistance.•The…”
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SiGeSn growth studies using reduced pressure chemical vapor deposition towards optoelectronic applications by Wirths, S., Buca, D., Ikonic, Z., Harrison, P., Tiedemann, A.T., Holländer, B., Stoica, T., Mussler, G., Breuer, U., Hartmann, J.M., Grützmacher, D., Mantl, S.

“…In this contribution, we propose a laser concept based on a double heterostructure consisting of tensile strained Ge as the active medium and SiGeSn ternaries…”
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Fatigue properties of multifunctional metal‐ and carbon‐fibre‐reinforced polymers and intrinsic capabilities for damage monitoring by Backe, S., Balle, F., Hannemann, B., Schmeer, S., Breuer, U.P.

“…Carbon‐fibre‐reinforced polymers (CFRP) structures offer enhanced lightweight potential in comparison with monolithic metallic concepts. Brittle failure…”
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First direct comparative test of single crystal rhodium and molybdenum mirrors for ITER diagnostics by Litnovsky, A., Krasikov, Yu, Rasinski, M., Kreter, A., Linsmeier, Ch, Mertens, Ph, Unterberg, B., Breuer, U., Wegener, T.

“…•Optical and laser-based diagnostics in ITER will use mirrors to observe plasma.•Single crystal materials are among the best mirror materials.•Single crystal…”
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Tuning of NiSi ∕ Si Schottky barrier heights by sulfur segregation during Ni silicidation by Zhao, Q. T., Breuer, U., Rije, E., Lenk, St, Mantl, S.

“…The Schottky barrier height (SBH) of NiSi on Si ( 100 ) was tuned in a controlled manner by the segregation of sulfur ( S ) to the silicide∕silicon interface…”
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Low Temperature Deposition of High-k/Metal Gate Stacks on High-Sn Content (Si)GeSn-Alloys by Schulte-Braucks, C, von den Driesch, N, Glass, S, Tiedemann, A. T, Breuer, U, Besmehn, A, Hartmann, J.-M, Ikonic, Z, Zhao, Q. T, Mantl, S, Buca, D

“…(Si)­GeSn is an emerging group IV alloy system offering new exciting properties, with great potential for low power electronics due to the fundamental direct…”
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Influence of tungsten microstructure and ion flux on deuterium plasma-induced surface modifications and deuterium retention by Buzi, L., De Temmerman, G., Unterberg, B., Reinhart, M., Dittmar, T., Matveev, D., Linsmeier, Ch, Breuer, U., Kreter, A., Van Oost, G.

“…The influence of surface temperature, particle flux density and material microstructure on the surface morphology and deuterium retention was studied by…”
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Sputtering tests of single crystal molybdenum and rhodium mirrors at high ion fluence for in situ plasma cleaning of first mirrors in ITER by Peng, J., Litnovsky, A., Kreter, A., Krasikov, Yu, Rasinski, M., Breuer, U., Chen, J.L.

“…First mirrors (FMs) are foreseen to be employed for optical diagnostics to view the burning plasma in ITER. Considering the dramatic degradation of the…”
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Optimization of single crystal mirrors for ITER diagnostics by Litnovsky, A., Peng, J., Kreter, A., Krasikov, Yu, Rasinski, M., Nordlund, K., Granberg, F., Jussila, J., Breuer, U., Linsmeier, Ch

“…•Single crystal molybdenum is a prime material for ITER first mirrors.•Resistance of a mirror to plasma sputtering is crucial for mirror cleaning.•Effect of…”
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Inhomogeneity of donor doping in SrTiO3 substrates studied by fluorescence-lifetime imaging microscopy by Rodenbücher, C., Gensch, T., Speier, W., Breuer, U., Pilch, M., Hardtdegen, H., Mikulics, M., Zych, E., Waser, R., Szot, K.

“…Fluorescence-lifetime imaging microscopy (FLIM) was applied to investigate the donor distribution in SrTiO3 single crystals. On the surfaces of Nb- and…”
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Time-of-flight secondary ion mass spectrometry study of lithium intercalation process in LiCoO2 thin film by Dellen, C., Gehrke, H.-G., Möller, S., Tsai, C.-L., Breuer, U., Uhlenbruck, S., Guillon, O., Finsterbusch, M., Bram, M.

“…A detailed time-of-flight secondary ion mass spectrometry (ToF-SIMS) analysis of the lithium de-/intercalation in thin films of the insertion cathode material…”
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Electrically controlled transformation of memristive titanates into mesoporous titanium oxides via incongruent sublimation by Rodenbücher, C., Meuffels, P., Bihlmayer, G., Speier, W., Du, H., Schwedt, A., Breuer, U., Jia, C.-L., Mayer, J., Waser, R., Szot, K.

“…Perovskites such as SrTiO 3 , BaTiO 3 , and CaTiO 3 have become key materials for future energy-efficient memristive data storage and logic applications due to…”
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Metal fiber incorporation in carbon fiber reinforced polymers (CFRP) for improved electrical conductivity by Hannemann, B., Backe, S., Schmeer, S., Balle, F., Breuer, U. P.

“…Compared to aluminum alloys, contemporary carbon fiber reinforced polymers (CFRP) structures offer poor electrical conductivity. Additional metal elements are…”
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On the plasma suitability of WCrY smart alloys-the effect of mixed D+Ar/He plasmas by Schmitz, J, Litnovsky, A, Klein, F, Lannoye, K De, Kreter, A, Rasinski, M, Breuer, U, Gonzalez-Julian, J, Bram, M, Coenen, J W, Linsmeier, Ch

“…Tungsten-chromium-yttrium (WCrY) smart alloys are foreseen as first wall materials for future fusion devices such as DEMO. While suppressing W oxidation during…”
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Hafnium carbide formation in oxygen deficient hafnium oxide thin films by Rodenbücher, C., Hildebrandt, E., Szot, K., Sharath, S. U., Kurian, J., Komissinskiy, P., Breuer, U., Waser, R., Alff, L.

“…On highly oxygen deficient thin films of hafnium oxide (hafnia, HfO2− x ) contaminated with adsorbates of carbon oxides, the formation of hafnium carbide (HfC…”
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Structural and electrical features induced by the leaching procedures on the LiNbO3 crystalline powder samples by Piecha, J., Dabioch, M., Breuer, U., Leonarska, A.

“…The crystalline powders of the LiNbO 3 were studied. Measurements were carried out on the reference modified by the leaching procedure samples. Leaching…”
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Low temperature RPCVD epitaxial growth of Si1−xGex using Si2H6 and Ge2H6 by Wirths, S., Buca, D., Tiedemann, A.T., Bernardy, P., Holländer, B., Stoica, T., Mussler, G., Breuer, U., Mantl, S.

“…► Pseudomorphic SiGe growth at low temperature (450–600°C). ► Fully strained SiGe layers with Ge concentrations up to 53%. ► Highly B and P doped Si and SiGe…”
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Adaptive vortex generators based on active hybrid composites: from idea to flight test by Nissle, S., Kaiser, M., Hübler, M., Gurka, M., Breuer, U.

“…In this contribution, we present a system of adaptive vortex generators (VGs) enabling an on-demand optimization of the airflow for high angles of attack. The…”
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