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Program Highlights for year 2007

Plasmon Propagation along Metallic Nanostructures

Â’ Nanoscale metallic structures are promising platforms for sensors: using photons to launch surface plasmon "polaritons", metallic nanowires can guide and re-emit light over tens of microns. The re-emission of light at the other end of a nanowire can be promoted or altered by adsorption of molecules.

Crystalline oxides on silicon

Researchers at Yale University have invented a high-performance material for future generations of transistors and devices. New oxide materials are required to make faster computer chips for the future. These new oxides will replace the oxide that has been the standard for the last 50 years, silicon dioxide.

Power transfer goes cordless

Members of IRG-I of the MIT MRSEC have recently demonstrated wireless transfers of power on the order of 60W over distances greater than 7 feet, with efficiency of roughly 50%, confirming the predictions of an earlier theoretical paper.

A New Generation of Spintronic Devices: MgO Magnetic Tunneling Junctions

We developed a low-pressure magnetron sputtering technique together with the linear dynamic deposition method and successfully fabricated a new type of magnetic tunneling junctions (MTJs) with (001) textured MgO barrier.

Secondary Teacher Interacting with Materials Professors Strikes Gold

Background: The JHU MRSEC conducts extensive K-12 educational outreach programs aimed at promoting interest in and awareness of the importance of modern materials research.

Domains and Domain Wall Motion in Perpendicular Anisotropy Materials

Magnetic thin films with perpendicular magnetic anisotropy (PMA) have special attributes for explorations and perpendicular magnetic recording. We have observed three hitherto unknown new features in materials with PMA: 1. Asymmetrical domain nucleation centers that produce domains for only one magnetization direction (Fig. 1).

Molecular Nano-Ring Beats Like a Chime

Perfect rings of C60 molecules, lined up around circular layers of silver, reveal an important property of nanoelectronic contacts: thermal energy causes