A computer hard disk uses a process called magnetic recording to store digital data. This involves applying a small field to switch the physical properties of grains of a magnetic material. The grains exist in one of two ...
General Physics
Feb 26, 2014
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A new type of transistor that could make possible fast and low-power computing devices for energy-constrained applications such as smart sensor networks, implantable medical electronics and ultra-mobile computing is feasible, ...
Electronics & Semiconductors
Dec 12, 2013
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Mankind has been storing information for thousands of years. From carvings on marble to today's magnetic data storage. Although the amount of data that can be stored has increased immensely during the past few decades, it ...
Hi Tech & Innovation
Oct 17, 2013
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Computer simulations conducted at the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) could help scientists make sense of a recently observed and puzzling wrinkle in one of nature's most important ...
Condensed Matter
Aug 22, 2013
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(Phys.org) —When oxygen atoms escape, they change the local electronic structure and cause the voltage to fade in a next-generation battery, according to theoreticians at Pacific Northwest National Laboratory and University ...
Materials Science
Aug 13, 2013
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Climate change could cause local extinctions of chocolate dipped damselfish that are highly specialised to the conditions on their home reef.
Environment
Jul 11, 2013
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The harder you pull, the quicker it goes. At least, that used to be the rule in mechanochemistry, a method that researchers apply to set chemical reactions in motion by means of mechanical forces. However, as chemists led ...
Materials Science
Jun 17, 2013
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For the first time, a new kind of so-called Klein tunnelling-representing the quantum equivalent of crossing an energy wall- has been presented in a model of two interacting particles. This work by Stefano Longhi and Giuseppe ...
General Physics
May 29, 2013
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(Phys.org) —Ammonia must overcome an energy barrier to join sulfuric acid and water to create clusters that can lead to cloud formation, according to scientists at Pacific Northwest National Laboratory and the University ...
Materials Science
May 24, 2013
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Throughout decades of research on solar cells, one formula has been considered an absolute limit to the efficiency of such devices in converting sunlight into electricity: Called the Shockley-Queisser efficiency limit, it ...
Energy & Green Tech
Apr 18, 2013
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