Search results for "defects"

  • Magnetism: Defects deprive magnetite of good spintronic properties

    About Overview Organization & Management Strategy Open Positions Access Research Researchers & L... arch in site Search Research Highlights Magnetism: Defects deprive magnetite of good spintronic properties 02... oretical and experimental study clearly shows that defects reduce the spin polarization of magnetite Antiphas... e defects (shown here in the central row) have been conclusi...
  • Structural defects: Know the boundaries

    About Overview Organization & Management Strategy Open Positions Access Research Researchers & L... arch in site Search Research Highlights Structural defects: Know the boundaries 02/27/2012 Understanding the ... basis of atomic defects and impurities offers greater insight into the rel... properties of materials Illustration of an ordered defect superstructure forming at a grain boundary in magne...
  • Material defects: Down to the core

    About Overview Organization & Management Strategy Open Positions Access Research Researchers & L... Search in site Search Research Highlights Material defects: Down to the core 06/30/2014 Crystal defect cores ... hemical properties of many materials. These linear defects, although capable of causing structural failure in... s and alloys. However, the core structures of such defects remain poorly understood. A team of researchers le...
  • Atomic Structure Identified in Coherent Interfaces between Superhard Materials of Diamond and Boron Nitride

    About Overview Organization & Management Strategy Open Positions Access Research Researchers & L... op new functional materials by focusing on lattice defects in crystals, namely dislocation, grain boundaries ... g their atomic structures, and controlling lattice defects. Through the concurrent use of atomic-resolution s... s resulting from controlling the formation of such defect structures, designing new devices incorporating lat...
  • Catalysis: Pinning down degradation

    About Overview Organization & Management Strategy Open Positions Access Research Researchers & L... ation of nanoporous gold demonstrates that surface defects suppress catalyst degradation during carbon monoxi... work has also revealed the significance of planar defects — and in particular the formation of twin boundari... es — a clear indication of the importance of these defects. In the absence of twin defects, the nanopores did...
  • Graphene oxide: Responding to infrared light

    About Overview Organization & Management Strategy Open Positions Access Research Researchers & L... by controlling the atomic structure and number of defects in graphene oxide Transmission electron microscopy... aphene, by controlling the structure and number of defects in the material 1 . Chang's team began by reducing... ties. Then, they studied the structure and type of defects found in the original and reduced graphene oxide w...
  • Catalysis: A kink in the golden rules

    About Overview Organization & Management Strategy Open Positions Access Research Researchers & L... g of nanoporous gold reveals that ‘kinked' surface defects are responsible for its high catalytic activity in... K and China, have captured new evidence that small defects on gold surfaces are active sites for CO oxidation... urity atoms play critical roles in stabilizing the defect sites — a finding that could boost the longevity an...
  • Graphene: Finding catalytic success with three-dimensional nanopores

    About Overview Organization & Management Strategy Open Positions Access Research Researchers & L... with three-dimensional nanopores 09/29/2014 Atomic defects in a uniquely shaped material turn graphene into a... aphene and realized that the build-up of geometric defects needed to turn flat graphene into 3D nanopores was... playing a role. Because these defect sites are electronically active, they conjectured t...
  • Graphene: Co-doping for a hydrogen society

    About Overview Organization & Management Strategy Open Positions Access Research Researchers & L... sulfur to nanoporous graphene in combination with defects results in a cheap and effective catalyst for hydr... ur. Nanoporous graphene generally contains various defects, including missing carbon atoms and dislocations i... n its lattice. Since defects tend to increase graphene's chemical activity, the...
  • 2014

    About Overview Organization & Management Strategy Open Positions Access Research Researchers & L... l nanopores Published in Advanced Materials Atomic defects in a uniquely shaped material turn graphene into a... rotubules along nanotube track 06/30/2014 Material defects: Down to the core Published in Nature Communicatio... ation of nanoporous gold demonstrates that surface defects suppress catalyst degradation during carbon monoxi...