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ALS in the News
Magnetic memory and logic could achieve ultimate energy efficiency Print
Friday, 01 July 2011 00:00

Future computers may rely on magnetic microprocessors that consume the least amount of energy allowed by the laws of physics, according to an analysis by University of California, Berkeley, electrical engineers.

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In magnetic contrast images (top) taken by the Advanced Light Source at Lawrence Berkeley National Laboratory, the bright spots are nanomagnets with their north ends pointing down (represented by red bar below) and the dark spots are north-up nanomagnets (blue). The six nanomagnets form a majority logic gate transistor, where the output on the right of the center bar is determined by the majority of three inputs on the top, left and bottom. Horizontal neighboring magnets tend to point in alternate directions, while vertical neighbors prefer to point in the same direction. (Image: Jeffrey Bokor lab, UC Berkeley)

 
Watching particles' jekyll-to-hyde transformation Print
Tuesday, 21 June 2011 00:00

Whether the abundant atmospheric specie malonic acid stays in a stable keto form or twists into a highly active enol form depends on the amount of water it finds in the atmosphere, according to researchers at the University of Iowa and Pacific Northwest National Laboratory.

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An abundant atmospheric species, malonic acid transforms from the stable, nonreactive keto form to the highly reactive enol form at elevated relative humidity. The reactive enol form is 4 to 5 orders of magnitude more abundant in the atmosphere than was expected from aqueous chemistry.

 
Meteorite holds clues to organic chemistry of the early Earth Print
Thursday, 09 June 2011 00:00

Carbonaceous chondrites are a type of organic-rich meteorite that contain samples of the materials that took part in the creation of our planets nearly 4.6 billion years ago, including materials that were likely formed before our Solar System was created and may have been crucial to the formation of life on Earth.

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Fundamentals and Applications of Aerosol Spectroscopy Print
Wednesday, 09 March 2011 16:36

The book Fundamentals and Applications of Aerosol Spectroscopy, recently published by Taylor and Francis Books, Inc., boasts two chapters in the "UV, X-Ray, and Electron Beam Studies" section written by Berkeley Lab researchers, highlighting a significant amount of work completed at ALS Beamlines 11.0.2, 5.3.2, and 9.0.2.

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An Energy-Saving Magnetic Fridge? Perhaps, but First Some Basic Research Print
Thursday, 08 July 2010 16:13

Forget the magnets on your fridge. How about a magnet in your fridge, one that keeps your leftover pizza cold while consuming less energy than today’s refrigerators?

It could happen. But don’t expect to buy an energy-saving magnetic fridge at Home Depot tomorrow, or even in five years. Scientists must first gain a better understanding of a phenomenon called the giant magnetocaloric effect, in which a changing magnetic field in a material causes its temperature to drop precipitously.

Berkeley Lab's Sujoy Roy has spent the last few years uncovering the secrets of the phenomenon by studying alloys that experience a pronounced magnetocaloric effect. He uses Berkeley Lab’s Advanced Light Source, a national user facility that generates light brighter than the sun to probe the fundamental properties of substances, down to the atomic level. Read the full article.

 
Berkeley Lab Wins Four R&D Awards Print
Thursday, 08 July 2010 16:05

Four inventions from the U.S. Department of Energy’s Lawrence Berkeley National Laboratory have been recognized with the R&D 100 award for 2010 from R&D Magazine, which recognizes the 100 most significant proven technological advances of the year.

Winners include an international collaboration that included Berkeley Lab scientists Frank Ogletree, Hendrik Bluhm, Zahid Hussain and Miquel Salmeron, working at Berkeley Lab’s Advanced Light Source (ALS), developed a novel lens system that makes possible the use of X-ray Photoelectron Spectroscopy technology under pressures and humidities similar to those encountered in the natural environment. Read the full article.

 
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