Browsing Øvrige samlinger by Journals "Nano letters (Print)"

Now showing items 1-10 of 10

    • Defect Engineering in Plasmonic Metal Oxide Nanocrystals 

      Runnerstom, Evan J; Bergerud, Amy; Agrawal, Ankit; Johns, Robert W.; Dahlman, Clayton J.; Singh, Ajay; Selbach, Sverre Magnus; Milliron, Delia J. (Journal article; Peer reviewed, 2016)
      Defects may tend to make crystals interesting but they do not always improve performance. In doped metal oxide nanocrystals with localized surface plasmon resonance (LSPR), aliovalent dopants and oxygen vacancies act as ...

    • GaN/AlGaN nanocolumn ultraviolet light-emitting diode using double-Layer graphene as substrate and transparent electrode 

      Høiaas, Ida Marie; Liudi Mulyo, Andreas; Vullum, Per Erik; Kim, Dong Chul; Ahtapodov, Lyubomir; Fimland, Bjørn-Ove; Kishino, Katsumi; Weman, Helge (Journal article, 2019)
      The many outstanding properties of graphene have impressed and intrigued scientists for the last few decades. Its transparency to light of all wavelengths combined with a low sheet resistance makes it a promising electrode ...

    • Grain-size Controlled Mechanical Properties of Polycrystalline Monolayer MoS2 

      Wu, Jianyang; Cao, Pinqiang; Zhang, Zhisen; Ning, Fulong; Zheng, Songsheng; He, Jianying; Zhang, Zhiliang (Journal article, 2018)
      Pristine monocrystalline molybdenum disulphide (MoS2) possesses high mechanical strength comparable to that of stainless steel. Large-area chemical-vapor-deposited monolayer MoS2 tends to be polycrystalline with intrinsic ...

    • Observation of uncompensated bound charges at improper ferroelectric domain walls 

      Schoenherr, Peggy; Shapovalov, Konstantin; Schaab, Jakob; Yan, Zewu; Bourret, Edith; Hentschel, Mario; Stengel, Massimiliano; Fiebig, Manfred; Cano, Andrés; Meier, Dennis (Journal article; Peer reviewed, 2019)
      Low-temperature electrostatic force microscopy (EFM) is used to probe unconventional domain walls in the improper ferroelectric semiconductor Er0.99Ca0.01MnO3 down to cryogenic temperatures. The low-temperature EFM maps ...

    • Propagation Length of Antiferromagnetic Magnons Governed by Domain Configurations 

      Ross, Andrew; Lebrun, Romain; Gomonay, Olena; Grave, Daniel A.; Kay, Asaf; Baldrati, Lorenzo; Becker, Sven; Qaiumzadeh, Alireza; Ulloa, Camilo; Jakob, Gerhard; Kronast, Florian; Sinova, Jairo; Duine, Rembert; Brataas, Arne; Rothschild, Avner; Klaui, Mathias Michael (Peer reviewed; Journal article, 2019)
      The compensated magnetic order and characteristic terahertz frequencies of antiferromagnetic materials make them promising candidates to develop a new class of robust, ultrafast spintronic devices. The manipulation of ...

    • Proximity-Induced Superconductivity in CdTe-HgTe Core-Shell Nanowires 

      Hajer, Jan; Kessel, Maximilian; Brüne, Christoph; Stehno, Martin P; Buhmann, Hartmut; Molenkamp, Laurens W (Journal article; Peer reviewed, 2019)
      In this Letter we report on proximity superconductivity induced in CdTe–HgTe core–shell nanowires, a quasi-one-dimensional heterostructure of the topological insulator HgTe. We demonstrate a Josephson supercurrent in our ...

    • Role of Five-fold Twin Boundary on the Enhanced Mechanical Properties of fcc Fe Nanowires 

      Wu, Jianyang; Nagao, Shijo; He, Jianying; Zhang, Zhiliang (Journal article; Peer reviewed, 2011)
      The role of 5-fold twin boundary on the structural and mechanical properties of fcc Fe nanowire under tension is explored by classical molecular dynamics. Twin-stabilized fcc nanowire with various diameters (6~24 nm) are ...

    • Single-Mode Near-Infrared Lasing in a GaAsSb-Based Nanowire Superlattice at Room Temperature 

      Ren, Dingding; Ahtapodov, Lyubomir; Nilsen, Julie Stene; Yang, Jianfeng; Gustafsson, Anders; Huh, Junghwan; Conibeer, G; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge (Journal article; Peer reviewed, 2018)
      Semiconductor nanowire lasers can produce guided coherent light emission with miniaturized geometry, bringing about new possibilities for a variety of applications including nanophotonic circuits, optical sensing, and ...

    • Solvent-Controlled Charge Storage Mechanisms of Spinel Oxide Electrodes in Mg Organohaloaluminate Electrolytes 

      Wang, Lu; Wang, Zhaohui; Vullum, Per Erik; Selbach, Sverre Magnus; Svensson, Ann Mari; Vullum-Bruer, Fride (Journal article; Peer reviewed, 2017)
      Considering the improved safety, reduced cost, and high volumetric energy density associated with Mg batteries, this technology has distinct advantages for large-scale energy storage compared to other existing battery ...

    • Topological defects in hexagonal manganites - Inner structure and emergent electrostatics 

      Holtz, Megan, E.; Shapovalov, Konstantin; Mundy, Julia; Chang, C. S.; Yan, Zewu; Bourret, Edith; Muller, David A.; Meier, Dennis; Cano, Andrés (Journal article; Peer reviewed, 2017)
      Diverse topological defects arise in hexagonal manganites, such as ferroelectric vortices, as well as neutral and charged domain walls. The topological defects are intriguing because their low symmetry enables unusual ...