منابع مشابه
Magnetism in Coaxial Palladium Nanowires
While bulk palladium is non-magnetic, several recent studies have shown that magnetism can occur in hcp Pd films, fcc twinned Pd nanoparticles, and Pd atomic strands. These studies show that small changes in Pd atomic configurations can induce magnetic properties. This raises the question of whether nanoscale Pd structures in general are magnetic. In this work, we examine coaxial palladium nano...
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We have investigated infinitely long, monostrand Pt nanowires theoretically, and found that they exhibit Hund’s rule magnetism. We find a spin moment of 0.6 μB per atom, at the equilibrium bond length. Its magnetic moment increases with stretching. The origin of the wire magnetism is analyzed and its effect on the conductance through the wire is discussed.
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We investigate the equilibrium geometry and electronic structure of Mo12S9I9 nanowires using ab initio density functional calculations. The skeleton of these unusually stable nanowires consists of rigid, functionalized Mo octahedra, connected by flexible, bistable sulfur bridges. This structural flexibility translates into a capability to stretch up to approximately 20% at almost no energy cost...
متن کاملNitrogen-Polar GaN Nanowires With Coaxial GaInN Quantum Wells
In this work, position-controlled growth of nitrogen-polar Ga(In)N nanowire heterostructures with aspect ratios up to 20 is presented. By using nanoimprint lithography and dry etching techniques for the mask patterning, nanowires with diameters down to about 300 nm are grown by selective area metal organic vapor phase epitaxy. GaInN quantum wells are realized on the side facets of these structu...
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The fabrication and properties of n-ZnO nanowires/p-CuO coaxial heterojunction (CH) with a photoresist (PR) blocking layer are reported. In our study, c-plane wurtzite ZnO nanowires were grown by aqueous chemical method, and monoclinic CuO (111) was then coated on the ZnO nanowires by electrochemical deposition to form CH. To improve the device performance, a PR layer was inserted between the Z...
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ژورنال
عنوان ژورنال: Journal of Applied Physics
سال: 2007
ISSN: 0021-8979,1089-7550
DOI: 10.1063/1.2672303