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Trapping vortices key to high-current superconductors

The emerging technology of the scanning tunneling microscope has finally provided a picture at the atomic level that may lead to a theory to guide future engineers. Researchers have found that irradiation of the material creates nanometer-sized defects that trap swirling eddies in the flow of electrons, keeping them out of the way so more current can flow.

Posted: Jul 2nd, 2015

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Better memory with faster lasers

Using ultrafast laser pulses that speed up the data recording process, researchers adopted a novel technique, ultrafast electron crystallography (UEC), to visualize directly in four dimensions the changing atomic configurations of the materials undergoing the phase changes.

Posted: Jul 1st, 2015

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Interface engineering leads to advances in organic spintronics

Designing, understanding, and controlling the interface formation between molecular semiconductors and ferromagnets are important to the development of organic spintronics because the interface plays a critical role in determining the efficiency of spin injection and detection.

Posted: Jul 1st, 2015

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Switchable cages - Self-assembly of molecular Archimedean polyhedra

Chemists truly went back to the drawing board to develop new X-shaped organic building blocks that can be linked together by metal ions to form an Archimedean cuboctahedron. They report that by changing the concentration or using different counterions, the cuboctahedron can be reversibly split into two octahedra - an interesting new type of fusion-fission switching process.

Posted: Jul 1st, 2015

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Implantable microfluidic system regulates internal ocular pressure

Elevated or diminished eye pressure impairs our ability to see, and in the worst cases, can even lead to blindness. Until now, there has been no effective long-term treatment. In response, researchers are developing an implantable microfluid system that can efficiently and durably stabilize intraocular pressure.

Posted: Jul 1st, 2015

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Producing spin-entangled electrons

Researchers have successfully produced pairs of spin-entangled electrons and demonstrated, for the first time, that these electrons remain entangled even when they are separated from one another on a chip.

Posted: Jul 1st, 2015

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