Search Results - "Boettger, Roman"

Ultra-doped n-type germanium thin films for sensing in the mid-infrared by Prucnal, Slawomir, Liu, Fang, Voelskow, Matthias, Vines, Lasse, Rebohle, Lars, Lang, Denny, Berencén, Yonder, Andric, Stefan, Boettger, Roman, Helm, Manfred, Zhou, Shengqiang, Skorupa, Wolfgang

“…A key milestone for the next generation of high-performance multifunctional microelectronic devices is the monolithic integration of high-mobility materials…”
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Implanting Germanium into Graphene by Tripathi, Mukesh, Markevich, Alexander, Böttger, Roman, Facsko, Stefan, Besley, Elena, Kotakoski, Jani, Susi, Toma

“…Incorporating heteroatoms into the graphene lattice may be used to tailor its electronic, mechanical and chemical properties, although directly observed…”
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Surface modifications of crystal-ion-sliced LiNbO3 thin films by low energy ion irradiations by Bai, Xiaoyuan, Shuai, Yao, Gong, Chaoguan, Wu, Chuangui, Luo, Wenbo, Böttger, Roman, Zhou, Shengqiang, Zhang, Wanli

“…•Single crystalline 128°Y-cut LiNbO3 thin films are fabricated on Si substrates by crystal-ion-slicing technique using BCB wafer bonding.•Low energy Ar+…”
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Joining of two different ceramic nanomaterials for bottom-up fabrication of heterojunction devices by Rajbhar, Manoj K., Das, Pritam, Satpati, Biswarup, Möller, Wolfhard, Facsko, Stefan, Böttger, Roman, Ramgir, Niranjan, Chatterjee, Shyamal

“…Fabrication of device though bottom-up approach and using nanowires as building blocks has received significant attention as one can build flexible electronics…”
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Er implantation into various cuts of ZnO – experimental study and DFT modelling by Nekvindová, Pavla, Cajzl, Jakub, Macková, Anna, Malinský, Petr, Oswald, Jiří, Böttger, Roman, Yatskiv, Roman

“…This paper presents a DFT study of the positions of erbium ions in the ZnO structure as well as experimental study of Er ion implantation into different…”
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From holes to sponge at irradiated Ge surfaces with increasing ion energy—an effect of defect kinetics? by Böttger, Roman, Heinig, Karl-Heinz, Bischoff, Lothar, Liedke, Bartosz, Facsko, Stefan

“…We show that hole patterns and sponge-like layers at irradiated Ge surfaces originate from the same driving force, namely the kinetics of ion beam induced…”
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RBS/C, XRR, and XRD Studies of Damage Buildup in Er‐Implanted ZnO by Jozwik, Przemyslaw, Magalhães, Sergio, Ratajczak, Renata, Mieszczynski, Cyprian, Sequeira, Miguel, Turos, Andrzej, Böttger, Roman, Heller, Rene, Lorenz, Katharina, Alves, Eduardo

“…Accumulation and transformation of defects formed in bulk ZnO crystals at room temperature upon 300 keV Er ions bombardment have been thoroughly examined using…”
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Luminescence in the Visible Region from Annealed Thin ALD‐ZnO Films Implanted with Different Rare Earth Ions by Ratajczak, Renata, Guziewicz, Elzbieta, Prucnal, Slawomir, Łuka, Grzegorz, Böttger, Roman, Heller, Rene, Mieszczynski, Cyprian, Wozniak, Wojciech, Turos, Andrzej

“…Epitaxial ZnO thin films grown by atomic layer deposition on GaN/Al2O3 substrates are implanted with Yb, Dy, and Pr ions to a fluence of 5 × 1014 at cm−2 and…”
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Magneto-structural correlations in a systematically disordered B2 lattice by Ehrler, Jonathan, Sanyal, Biplab, Grenzer, Jörg, Zhou, Shengqiang, Böttger, Roman, Eggert, Benedikt, Wende, Heiko, Lindner, Jürgen, Fassbender, Jürgen, Leyens, Christoph, Potzger, Kay, Bali, Rantej

“…Ferromagnetism in certain B2 ordered alloys such as Fe60Al40 can be switched on, and tuned, via antisite disordering of the atomic arrangement. The disordering…”
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Defect-Induced Exchange Bias in a Single SrRuO3 Layer by Wang, Changan, Chen, Chao, Chang, Ching-Hao, Tsai, Hsu-Sheng, Pandey, Parul, Xu, Chi, Böttger, Roman, Chen, Deyang, Zeng, Yu-Jia, Gao, Xingsen, Helm, Manfred, Zhou, Shengqiang

“…Exchange bias stems from the interaction between different magnetic phases, and therefore, it generally occurs in magnetic multilayers. Here, we present a…”
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Discrete Single Crystalline Titanium Oxide Nanoparticle Formation from a Two-Dimensional Nanowelded Network by Dhal, Satyanarayan, Chatterjee, Shyamal, Facsko, Stefan, Möller, Wolfhard, Böttger, Roman, Satpati, Biswarup, Ratha, Satchidananda, Hübner, René

“…Nanostructured materials are gaining increasing importance due to their unique properties resulting from the high surface to volume ratio and the altered…”
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The role of open-volume defects in the annihilation of antisites in a B2-ordered alloy by Ehrler, Jonathan, Liedke, Maciej Oskar, Čížek, Jakub, Boucher, Richard, Butterling, Maik, Zhou, Shengqiang, Böttger, Roman, Hirschmann, Eric, Trinh, Thu Trang, Wagner, Andreas, Lindner, Jürgen, Fassbender, Jürgen, Leyens, Christoph, Potzger, Kay, Bali, Rantej

“…The atomic arrangement in certain ordered alloys, such as B2–Fe60Al40 determines intrinsic material properties for instance, the saturation magnetization. Here…”
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Effect of silver ion implantation on antibacterial ability of polyethylene food packing films by Lu, Naiyan, Chen, Zhe, Zhang, Wei, Yang, Guofeng, Liu, Qingrun, Böttger, Roman, Zhou, Shengqiang, Liu, Yu

“…•Ion implantation was used to introduce silver ions in polyethylene flims.•Anti-bacterial adhension property and bactericial effect of the film were…”
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Tunable magnetic vortex dynamics in ion-implanted permalloy disks by Ramasubramanian, Lakshmi, Kákay, Attila, Fowley, Ciarán, Yildirim, Oguz, Matthes, Patrick, Sorokin, Serhii, Titova, Aleksandra, Hilliard, Donovan, Boettger, Roman, Hübner, René, Gemming, Sibylle, Schulz, Stefan E, Kronast, Florian, Makarov, Denys, Faßbender, Jürgen, Deac, Alina

“…Nanoscale, low-phase noise, tunable transmitter-receiver links are key for enabling the progress of wireless communication. We demonstrate that vortex-based…”
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Evaluation of defect formation in helium irradiated Y2O3 doped W-Ti alloys by positron annihilation and nanoindentation by Richter, Asta, Anwand, Wolfgang, Chen, Chun-Liang, Böttger, Roman

“…Helium implanted tungsten-titanium ODS alloys are investigated using positron annihilation spectroscopy and nanoindentation. Titanium reduces the brittleness…”
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Rectifying filamentary resistive switching in ion-exfoliated LiNbO3 thin films by Pan, Xinqiang, Shuai, Yao, Wu, Chuangui, Luo, Wenbo, Sun, Xiangyu, Zeng, Huizhong, Zhou, Shengqiang, Böttger, Roman, Ou, Xin, Mikolajick, Thomas, Zhang, Wanli, Schmidt, Heidemarie

“…In this letter, we report the resistive switching properties of ion-exfoliated LiNbO3 thin films. After annealing in Ar or in vacuum, electro-forming has been…”
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Improving depth resolutions in positron beam spectroscopy by concurrent ion-beam sputtering by John, Marco, Dalla, Ayham, Ibrahim, Alaa M., Anwand, Wolfgang, Wagner, Andreas, Böttger, Roman, Krause-Rehberg, Reinhard

“…The depth resolution of mono-energetic positron annihilation spectroscopy using a positron beam is shown to improve by concurrently removing the sample surface…”
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Compliance-current-modulated resistive switching with multi-level resistance states in single-crystalline LiNbO3 thin film by Pan, Xinqiang, Shuai, Yao, Wu, Chuangui, Luo, Wenbo, Sun, Xiangyu, Zeng, Huizhong, Guo, Hongliang, Yuan, Ye, Zhou, Shengqiang, Böttger, Roman, Cheng, Hong, Zhang, Jianwei, Zhang, Wanli, Schmidt, Heidemarie

“…Resistive switching behavior of a ca. 600 nm thick single-crystalline LiNbO3 (LNO) film has been investigated after vacuum-annealing. Oxygen vacancies (OVs)…”
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On the insulator-to-metal transition in titanium-implanted silicon by Liu, Fang, Wang, Mao, Berencén, Yonder, Prucnal, Slawomir, Engler, Martin, Hübner, René, Yuan, Ye, Heller, René, Böttger, Roman, Rebohle, Lars, Skorupa, Wolfgang, Helm, Manfred, Zhou, Shengqiang

“…Hyperdoped silicon with deep level impurities has attracted much research interest due to its promising optical and electrical properties. In this work, single…”
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Multiscale structured germanium nanoripples as templates for bioactive surfaces by Dell'Anna, Rossana, Masciullo, Cecilia, Iacob, Erica, Barozzi, Mario, Giubertoni, Damiano, Böttger, Roman, Cecchini, Marco, Pepponi, Giancarlo

“…Nanostructured germanium substrates are produced by gold ion implantation; they show periodic ripples of nanometer size, decorated on the top and partially on…”
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