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Researchers discover unexpected charge properties of single dopants

Researchers found that the precise location of the donor atom in the surface determined whether a positive or negative charge was induced in the surface, which was contrary to expectation because donors in bulk silicon are either neutral or positively charged, depending on sample temperature.

Posted: Dec 27th, 2012

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Could wood replace damaged bones?

Presently, finding biomimetic materials (the structure and function of biological systems), which are similar to bone in terms of strength, flexibility and density, is an ongoing concern for medical scientists. The hope is that it might be possible supplement metal alloy implants using such materials.

Posted: Dec 27th, 2012

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Molecular levers may make materials better

In a forced game of molecular tug-of war, some strings of atoms can act like a lever, accelerating reactions 1000 times faster than other molecules. The discovery suggests that scientists could use these molecular levers to drive chemical and mechanical reactivity among atoms and ultimately engineer more efficient materials.

Posted: Dec 23rd, 2012

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Forget solid, liquid, and gas: there are in fact more than 500 phases of matter

Using modern mathematics, scientists reveal a new system which can, at last, successfully classify symmetry-protected phases of matter. Their new classification system will provide insight about these quantum phases of matter, which may in turn increase our ability to design states of matter for use in superconductors or quantum computers.

Posted: Dec 22nd, 2012

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Suspend the crystals, and they grow better

The idea is so simple you wonder why no one thought of it before. Crystals growing near the bottom of a beaker are subject to convection, but it is much quieter near the top of the beaker. In that case, why not just let them grow hanging in the beaker?

Posted: Dec 21st, 2012

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