News tagged with crystallinity

Towards controlled dislocations

Crystallographic defects or irregularities (known as dislocations) are often found within crystalline materials. Two main types of dislocation exist: edge and screw type. However, dislocations found in real ...

Oct 20, 2014
5 / 5 (1) 0

Many roads lead to superconductivity

Since their discovery in 2008, a new class of superconductors has precipitated a flood of research the world over. Unlike the previously familiar copper ceramics (cuprates), the basic structure of this new class consists ...

Sep 10, 2010
4.2 / 5 (22) 6 | with audio podcast

Current loss tracked down by magnetic fingerprint

Conventional solar cells made from crystalline silicon are difficult and energy-intensive to manufacture. Organic solar cells are cheaper, but have always produced less electricity. Why this is so has never been fully explained. ...

Oct 26, 2010
4.3 / 5 (7) 0 | with audio podcast

Using Nanotubes in Computer Chips

(PhysOrg.com) -- MIT materials scientists have developed a new technique for growing carbon nanotubes that could replace the vertical wires in chips, permitting denser packing of circuits.

Sep 10, 2009
5 / 5 (3) 3

Manipulating the texture of magnetism

Knowing how to control the combined magnetic properties of interacting electrons will provide the basis to develop an important tool for advancing spintronics: a technology that aims to harness these properties ...

Feb 03, 2012
5 / 5 (5) 1

Titanium dioxide nanoreactor

Tiny particles of titanium dioxide are found as key ingredients in wall paints, sunscreens, and toothpaste; they act as reflectors of light or as abrasives. However with decreasing particle size and a corresponding ...

Feb 21, 2013
5 / 5 (2) 0

Materials that shrink when heated

One common reason that people with fillings experience toothache is that their fillings expand at a different rate to the original tooth when, for example, drinking a hot drink. Contrary to intuition, however, ...

Feb 09, 2012
5 / 5 (2) 1