Background: The geometry of a nanoring magnet provides unique magnetic configurations of onion, vortex, and twisted, which can be exploited in nanoring magnetic tunnel junctions (NRMTJs) .

Classroom Visits Program J. Blume, Division of Engineering Brown undergraduates and faculty visit local science/math classes or youth programs to present engineering topics to students in Grades K-12. Presentations are developed by students and faculty based on current research or topics covered in the Brown curriculum. Student groups, such as the National Society of Black Engineers Student Chapter, Engineers without Borders, and th FSAE Care Team participate. Example Presentations

Surfactants are everywhere in nature and everyday life: animals rely on lung surfactants to breathe, and mayonnaise would separate into oil and water without them. To develop advanced multiphase polymeric materials, the efficacy of synthetic surfactants must be determined and optimized.

The Materials Research Facilities Network (MRFN) has recently been established and is currently in operation at ca. 50% of MRSEC sites. The goal of the MRFN is to maximize the usage of MRSEC facilities and is directed towards the efficient and strategic development of materials characterization within the United States.

An insulator is usually described as a material with completely filled electronic bands that do not contribute to any interesting transport behavior. However, recent theories have shown that in a particular class of band insulators called "topological insulators", the quantum motion of these electronically inert bulk electrons are entangled in non-trivial ways, giving rise to highly unusual conducting states at the surface of the material.

Self-Assembled Nanoscale Dielectric (SAND) thin films are emerging as leading contenders in applications for organic and hybrid thin film transistors, allowing for low operating voltages and ideal device characteristics in next-generation flexible electronics.Â’  Dielectric properties are highly dependent on the behavior of the counter-anions within the film, specifically their position and motion under applied electric fields.Â’  Through utilization of advanced x-ray techniques, including long-period X-ray Standing Wave and X-ray Reflectivity, it is possible to locate and moni

Chemically-etched SrTiO3 is widely used as a clean, atomically-smooth template for epitaxical growth of most complex oxides. Since native point defects in these materials are electrically-active and mobile, there is a need to lower their density. Download

Grain boundaries are inherent defects in most materials of technological relevance. Understanding how a growing crack interacts with them will enable design of microstructures to enhance the material toughness, a

The ability to modify the electronic structure and properties of graphene is an important step towards the large scale fabrication of electronic devices based on graphene technology.