Surface plasmons are light-energy propagating electromagnetic modes trapped at the interface between certain metals (notably gold and silver) and a dielectric. They are also of interest for optical processes enhanced by strong local electric fields.
May 2009 marked the University of Maryland MRSEC’s 12th Annual Middle School Student Science Conference, co-hosted by the American Institute of Physics.
Micron-sized non-volatile magnetoresistance devices are being pursued using ferroelectric/magnetostrictive multilayers.
We have identified a composition in Sm doped BiFeO3 which exhibits a complex mixture of ferroelectric phase and an antiferroelectric phase.
Magnetism is typically associated with “transition metal” elements such as nickel or iron, from the middle of the periodic table.
Graphene (two-dimensional carbon) is an attractive material for spintronics due to weak spin-orbit coupling for robust spin transport properties. This could lead to spin-based computers that integrate logic and memory for much greater computing power.
Ordered double perovskites, such as Sr2FeMoO6, are among the very few materials that allow electrons of one spin direction to move through them as though they were passing through a normal metal, while blocking electrons of the opposite spin. Materials that behave this way at room temperature are even more exotic.
Modern electronics, e.g. a smart phone, relies heavily on science and engineering: semiconductors (diodes, transistors), magnetism (hard drives), photoelectric effect (digital camera), photon generation and lasers (LEDs, CD/DVD drives), light polarization (LCD), etc. The immediacy and applicability makes electronics a great tool for teaching science and technology.
Part of the CRISP Shared Equipment is a unique variable temperature, variable magnetic field ultrahigh vacuum scanning force microscope for applications in magnetic, electrostatic, piezoelectric, and friction force microscopy.