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The conductance properties of a narrow graphene nanoribbon are correlated with its electronic states over a wide range of bias voltages using a scanning tunnelling microscope.
Spin can be injected into silicon from a ferromagnetic contact and across a graphene barrier with resistance-area products up to one thousand times lower than with comparable oxide tunnel barriers.
Current models used for estimating cell stiffness from atomic force microscopy measurements generally overestimate it. Now, an analytical correction for these models enables the cell stiffness to be estimated more accurately, and improves the use of atomic force microscopy as a diagnostic tool in cancer.
The photocurrent generated by a single photosynthetic protein can be measured using a scanning near-field optical probe that functions as both an electrode and a light source.
The efficiency of solar cells with high-area, nanostructured surfaces is limited by surface and Auger charge-recombination processes, which can be slowed through appropriate levels of junction doping.
The M13 filamentous virus can be used to deliver large numbers of magnetic nanoparticles with a minimum number of targeting ligands for improved molecular imaging.
Graphene nanoribbons with a clear transport gap and high on/off ratio are grown directly into complex architectures using plasma chemical vapour deposition onto lithographically defined nickel nanobar substrates.
Current-induced magnetic domain wall motion can be triggered by an applied magnetic field, and its motion is described by the vector sum of the velocities imparted by current and magnetic field driving terms.
Kirchhoff's conductance superposition law is investigated in single-molecule circuits. A single-molecule junction with two backbones in a parallel configuration can exhibit more than twice the conductance of a single-molecule junction with one backbone, a demonstration of constructive quantum interference.
Controlling the plasmon resonance of nanodisk structures enables colour images to be printed at the ultimate resolution of 100,000 dots per inch, as viewed by bright-field microscopy.
Improved performance in a photovoltaic device made of colloidal quantum dots is achieved through a combination of passivation by halide anions and organic crosslinking.