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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.
Local proton irradiation causes a chemical reaction that leads to nanopatterned magnetic media. The technique has strong potential for improving high-density data storage and other types of applications involving nanostructuring of materials.