News tagged with silicon crystal

Single-atom transistor is 'perfect'

In a remarkable feat of micro-engineering, UNSW physicists have created a working transistor consisting of a single atom placed precisely in a silicon crystal.

Feb 19, 2012
4.9 / 5 (44) 24 | with audio podcast

Taming the wild phonon

(PhysOrg.com) -- Researchers at MIT and elsewhere have succeeded in creating a synthetic crystal that can very effectively control the transmission of heat -- stopping it in its tracks and reflecting it back. ...

Mar 22, 2010
4.9 / 5 (22) 9 | with audio podcast

Researchers steer light in new directions

A team of researchers led by San Francisco State University's Weining Man is the first to build and demonstrate the ability of two-dimensional disordered photonic band gap material, designed to be a platform ...

Sep 16, 2013
4.6 / 5 (15) 0 | with audio podcast

Fabricating 3D Photonic Crystals

(PhysOrg.com) -- “In photonic crystals, the ability to control the structure of a material in full three dimensional space, allows you to control the way that light flows through it,” John Rogers tells PhysOrg.com. “Thi ...

Jan 21, 2009 feature
4.3 / 5 (11) 1

Shells, silicon & neighbourly atoms

What do shells, solar panels and DVDs have in common? At the atomic scale they are 'amorphous', that is -- unlike crystals -- they are built from irregular arrangements of atoms.

Mar 24, 2010
4.4 / 5 (9) 1 | with audio podcast

Building 3-D fractals on a nano scale

It starts with one 3D structure with eight planes, an octahedron. This repeats itself to smaller octahedra: 625 after just four steps. At every corner of a new octahedron, a successive octahedron is formed. ...

May 31, 2013
5 / 5 (7) 1