News tagged with atomic transitions
Physicists show standard 'quasiparticle' theory breaks down at 'quantum critical point'
A new study this week finds that "quantum critical points" in exotic electronic materials can act much like polarizing "hot button issues" in an election. Reporting in Nature, researchers from Rice Univer ...
Apr 25, 2012 |
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Copper-based materials show strange spin states
(PhysOrg.com) -- Just as water, ice, and steam are all phases of the same material that are influenced by temperature and pressure, new research shows how transitions of state work in very simple lattices ...
Mar 28, 2012 |
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New 'pendulum' for the ytterbium clock
The faster a clock ticks, the more precise it can be. Due to the fact that lightwaves vibrate faster than microwaves, optical clocks can be more precise than the caesium atomic clocks which presently determine ...
Mar 09, 2012 |
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Magnetic actuation enables nanoscale thermal analysis
Polymer nano-films and nano-composites are used in a wide variety of applications from food packaging to sports equipment to automotive and aerospace applications. Thermal analysis is routinely used to analyze ...
Jan 12, 2012 |
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A microscopic view on quantum fluctuations
(PhysOrg.com) -- Scientists at the Max Planck Institute of Quantum Optics achieve direct imaging of quantum fluctuations at absolute zero temperature.
Oct 14, 2011 |
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New metal hydride clusters provide insights into hydrogen storage
A study published by researchers at the RIKEN Advanced Science Institute (ASI) has shed first-ever light on a class of heterometallic molecular structures whose unique features point the way to breakthroughs in the development ...
Sep 22, 2011 |
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Recalculating the distance to interstellar space
(PhysOrg.com) -- Scientists analyzing recent data from NASA's Voyager and Cassini spacecraft have calculated that Voyager 1 could cross over into the frontier of interstellar space at any time and much earlier ...
Space & Earth / Space Exploration
Jun 15, 2011 |
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The curious case of germanium-72: An unusual isotope changes phases as temperature rises
(PhysOrg.com) -- There's a lot we don't know about the atomic nucleus, even though it was discovered a century ago this year.
Jun 02, 2011 |
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Structural distortions emerge from nothing at the nanoscale
Scientists have discovered that a class of materials known to convert heat to electricity and vice versa behaves quite unexpectedly at the nanoscale in response to changes in temperature. The discovery - described ...
Dec 16, 2010 |
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Size matters in crucial redox reactions
(PhysOrg.com) -- Particle size has a far more dramatic impact on chemical reactivity than previously thought, according to new research from UC Davis. The results have implications for understanding a wide range of vital ...
Oct 12, 2010 |
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Hydrogen fuel for thought: Researchers find metallacarboranes may meet DOE storage goals
(PhysOrg.com) -- New research by Rice University scientists suggests that a class of material known as metallacarborane could store hydrogen at or better than benchmarks set by the United States Department ...
Sep 30, 2010 |
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Berkeley lab scientists reveal path to protein crystallization (w/ Video)
(PhysOrg.com) -- Growth of two-dimensional S-layer crystals on supported lipid bilayers observed in solution using in situ atomic force microscopy. This movie shows proteins sticking onto the supported lipid ...
Sep 22, 2010 |
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First images of heavy electrons in action (w/ Video)
Using a microscope designed to image the arrangement and interactions of electrons in crystals, scientists have captured the first images of electrons that appear to take on extraordinary mass under certain ...
Jun 02, 2010 |
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Catching electrons in the act: Science on the attosecond scale
(PhysOrg.com) -- Understanding how to create artificial photosynthesis, or tough, flexible high-temperature superconductors, or better solar cells, or a myriad other advances, will only be possible when we ...
Apr 16, 2010 |
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Room Temperature Liquid Porphyrins
(PhysOrg.com) -- Porphyrins have received a great deal of attention in the scientific community owing to their useful application in a wide variety of areas, such as the treatment of cancer and systems that mimic photosynthesis. ...
Mar 23, 2010 |
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