News tagged with magnetic impurities
Researchers put a new spin on atomic musical chairs
Dec 02, 2009 |
5 / 5 (4) |
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Researchers from the National Institute of Standards and Technology and the Naval Research Laboratory have developed a new way to introduce magnetic impurities in a semiconductor crystal by prodding it with ...
Nanophysicists find unexpected magnetic effect: Kondo effect noted in single-atom contacts of pure ferromagnets
Apr 29, 2009 |
4.7 / 5 (6) |
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Spanish and U.S. physicists studying nanoelectronics have found that size really does matter when it comes to predicting the behavior of electrical contacts that are just one atom wide.
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As the World Churns
Space & Earth / Earth Sciences
Dec 28, 2009 |
4.5 / 5 (13) |
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(PhysOrg.com) -- "Terra firma." It's Latin for "solid Earth." Most of the time, at least from our perspective here on the ground, Earth seems to be just that: solid. Yet the Earth beneath our feet is actually ...
Voyager makes an interstellar discovery
Space & Earth / Space Exploration
Dec 26, 2009 |
4.7 / 5 (57) |
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The solar system is passing through an interstellar cloud that physics says should not exist. In the Dec. 24th issue of Nature, a team of scientists reveal how NASA's Voyager spacecraft have solved the mystery.
As shuttle's career nears an end, NASA turns focus to satellites
Space & Earth / Space Exploration
Dec 26, 2009 |
4.4 / 5 (8) |
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NASA heads into 2010 with the bittersweet assignment of retiring the space shuttle after nearly three decades. But that's not all the agency has planned: There are also launches of three new satellites aimed at better understanding ...
Tiny nano-electromagnets turn a cloak of invisibility into a possibility
Dec 22, 2009 |
4.6 / 5 (15) |
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A team of researchers at the FOM institute AMOLF (The Netherlands) has succeeded for the first time in powering an energy transfer between nano-electromagnets with the magnetic field of light.
Could acetaminophen ease psychological pain?
Medicine & Health / Psychology & Psychiatry
Dec 22, 2009 |
4 / 5 (6) |
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Headaches and heartaches. Broken bones and broken spirits. Hurting bodies and hurt feelings. We often use the same words to describe physical and mental pain. Over-the-counter pain relieving drugs have long been used to alleviate ...
Researchers are on the path to creating nano-MRI images
Dec 22, 2009 |
4.7 / 5 (6) |
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(PhysOrg.com) -- Cornell researchers are devising methods to detect the magnetic fields of individual electrons and atomic nuclei, which they hope to use to make a nanoscale version of magnetic resonance imaging.
Depression saps endurance of the brain's reward circuitry
Medicine & Health / Neuroscience
Dec 21, 2009 |
4.5 / 5 (6) |
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A new study at the University of Wisconsin-Madison suggests that depressed patients are unable to sustain activity in brain areas related to positive emotion.
Dental delight! Tooth of sea urchin shows formation of biominerals
Dec 21, 2009 |
5 / 5 (4) |
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(PhysOrg.com) -- Some of the most common minerals in biology, including those in bones and shells, have a mysterious structure: Their crystals are positioned in the same orientation, making them behave as ...
Switchable Nanostructures Made with DNA
Nanotechnology / Bio & Medicine
Dec 21, 2009 |
4.6 / 5 (9) |
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(PhysOrg.com) -- Scientists at the U.S. Department of Energy’s Brookhaven National Laboratory have found a new way to use a synthetic form of DNA to control the assembly of nanoparticles — this time resulting ...
Physicists see through the opaque with 'T-rays'
Dec 18, 2009 |
4.2 / 5 (11) |
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"T-rays" may make X-rays obsolete as a means of detecting bombs on terrorists or illegal drugs on traffickers, among other uses, contends a Texas A&M physicist who is helping lay the theoretical groundwork to make the concept ...
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