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Now showing items 11-20 of 322
Perturbative approach to the Kondo effect in magnetic atoms on nonmagnetic substrates
(2011)
Recent experimental advances in scanning tunneling microscopy make the measurement of the conductance
spectra of isolated and magnetically coupled atoms on nonmagnetic substrates possible. Notably, these spectra ...
Dynamic response of ammonia sensors constructed from polyaniline nanofibre films with varying morphology
(2012)
Polyaniline is acid-doped with HCl, HNO3, HClO4, HBr or H2SO4 to yield thin films that are nanofibrous or dense. The nanofibrous films show a faster response to ammonia gas, and the response is greater when the films are ...
First-principles study of high-conductance DNA sequencing with carbon nanotube electrodes
(2012)
Rapid and cost-effective DNA sequencing at the single nucleotide level might be achieved by measuring
a transverse electronic current as single-stranded DNA is pulled through a nanometer-sized pore. In order to
enhance ...
Ni(OH)2@Co(OH)2 hollow nanohexagons: Controllable synthesis, facet-selected competitive growth and capacitance property
(2014)
Hollow nanohexagons with a core?shell structure have been synthesized from a mixture of Ni and Co hydroxide by a mild wet chemical approach. Ni(OH)2@Co(OH)2 nanohexagons with controllable sizes of about 200 nm, morphology ...
Efficient spin injection and giant magnetoresistance in Fe/MoS2/Fe junctions
(2014)
We demonstrate giant magnetoresistance in Fe/MoS2/Fe junctions by means of ab initio transport calculations. We show that junctions incorporating either a monolayer or a bilayer of MoS2 are metallic and that Fe acts as an ...
Nucleobase adsorbed at graphene devices: Enhance bio-sensorics
(2012)
Graphene as a good material for sensing single small molecules is hardly believed to identify bio-molecules via electrical currents. This is because bio-molecules tend to bind to graphene through non-covalent bonds, such ...