Program Highlights for year 2013
Electron
paramagnetic resonance (EPR) is commonly used to manipulate and measure the
magnetic moments (or spins) of electrons.
IRG-D researchers at the Princeton Center for Complex Materials (PCCM)
have demonstrated a 100 fold improvement in sensitivity to the electrons’ spins
by combining long-coherence donor electrons in isotopically
Block
copolymer thin films are effective
templates for
fabricating
large arrays of nanoscopic
objects; for example, polymers which self-assemble into cylinders lying in the
plane of the film yield striped patterns, which can be replicated in metal to
yield nanowire grids which effectively polarize the short-wavelength
Thin block copolymer films are highly relevant for many scientific and industrial applications due to their ability to form uniform domains of controllable shape at nanometer length scales.
We investigated the electronic properties of interfaces between two laminated polymer films. The top polymer film (Fig. (a)) is transferred to a soft PDMS stamp, and laminated against the bottom film, previously spin-coated on a substrate.
Studying the electronic properties of the surface states on Topological Insulators requires high quality bulk crystals. We have figured out the defect chemistry of these compounds and grown crystals by the Bridgman Stockbarger method.
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