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In this issue:
A New Path of Conduction for Future Electronics
Kids Day Registration Ends Friday
Save the Date: SLUO Annual Meeting September 17
Around SLAC: 55 Loaves of Bread, 17 Pounds of Cheese
Wednesday - July 22, 2009 |
A New Path of Conduction for Future ElectronicsLast month, researchers from SLAC National Accelerator Laboratory and Stanford University made headlines when they revealed experimental evidence of a topological insulator: a material that could revolutionize computer processors by allowing electricity to flow without resistance. This week in Science, the theorists along with an experimental group in Germany report additional details about the way these topological insulators conduct electricity. Using the topological insulator mercury telluride, the paper shows that an electric current sent through these materials goes against conventional physics knowledge and travels far away from its input points, to the outer edges of the material. "This is another manifestation of this new state of matter, which is totally different than anything we're familiar with," said co-author Shou-Cheng Zhang of the Stanford Institute for Materials and Energy Science, a joint Stanford/SLAC institute. The current generation of microprocessors dissipate a lot of energy as heat, Zhang said, as result of electrical resistance. "It's one of the greatest obstacles facing the information age today. The current experiment proves that there is a possible motion of the electrons that does not dissipate energy in the traditional way." Read more... Registration Ends Friday for SLAC Kids Day 2009SLAC Kids Day 2009 will take place on Friday, August 14. Preregistration is required and registration ends at 5:00 p.m. this Friday. To register your kids (or your friends' kids), see the Kids Day Registration page. Save the Date:
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