Search results for lattice vibrations:
Looking for 'Stripes' in High-Tc superconductors
Mar 07, 2007 |
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In LBCO, as in all materials, negatively charged electrons repel one another. But by trying to stay as far apart as possible, each individual electron is confined to a limited space, which costs energy. To ...
Disorder Enables Extreme Sensitivity in Piezoelectric Materials
May 14, 2008 |
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A research team working at the National Institute of Standards and Technology has found an explanation for the extreme sensitivity to mechanical pressure or voltage of a special class of solid materials called relaxors. The ...
Scientists prove unconventional superconductivity in new iron arsenide compounds
Jan 09, 2009 |
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(PhysOrg.com) -- Scientists at U.S. Department of Energy's Argonne National Laboratory used inelastic neutron scattering to show that superconductivity in a new family of iron arsenide superconductors cannot ...
New insights into high-temperature superconductors
Feb 26, 2007 |
4.6 / 5 (28) |
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Scientists at the Carnegie Institution's Geophysical Laboratory in collaboration with a physicist at the Chinese University of Hong Kong have discovered that two different physical parameters —pressure and the substitution ...
Researchers team up to probe iron-arsenic superconductors with new instrument
Oct 10, 2008 |
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Researchers at the U.S. Department of Energy's Ames Laboratory are part of collaborative team that's used a brand new instrument at the DOE's Spallation Neutron Source to probe iron-arsenic compounds, the "hottest" new find ...
Interacting protein theory awaits test from new neutron analysis tools
Sep 27, 2007 |
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An international collaboration directed by an Oak Ridge National Laboratory researcher has performed the first-ever atomic-detail computer simulation of how proteins vibrate in a crystal.
Scientists observe solitary vibrations in uranium
Physics /
Mar 30, 2006 |
4.2 / 5 (16) |
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Los Alamos scientists, working with collaborators from around the world, recently observed experimental evidence of solitary vibrations (solitons) in a solid. First observed as localized waves on the surface of water more ...
Portable Precision: A New Type of Atomic Clock
Jun 11, 2009 |
3.2 / 5 (9) |
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The most accurate atomic clocks in the world are based on the output of cesium atoms. These ultra-precise fountain clocks measure the frequency and time interval of seconds by using a fountain-like movement of cesium atoms. ...
Imaging Challenges Theory of High-temperature Superconductivity
Aug 02, 2006 |
4.7 / 5 (27) |
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By observing events at the scale of single atoms, Cornell researchers have found evidence that the mechanism in high-temperature superconductors may be much more like that in low-temperature superconductors ...
More evidence for 'stripes' in high-temperature superconductors
Physics /
Apr 26, 2006 |
4.8 / 5 (16) |
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An international collaboration including two physicists from the U.S. Department of Energy's Brookhaven National Laboratory has published additional evidence to support the existence of "stripes" in high-temperature ...
Scientists Track Heat in Tiny Rolls of Carbon Atoms
Mar 02, 2009 |
5 / 5 (5) |
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(PhysOrg.com) -- IBM Research scientists today announced a landmark study in the field of nanoelectronics; the development and demonstration of novel techniques to measure the distribution of energy and heat in powered carbon ...
New Clues to Mechanism for Colossal Mangetoresistance
Aug 17, 2007 |
4.3 / 5 (48) |
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Experiments at the U.S. Department of Energy's Brookhaven National Laboratory shed new light on some materials' ability to dramatically change their electrical resistance in the presence of an external magnetic ...
Quantum gas microscope offers glimpse of quirky ultracold atoms
Nov 04, 2009 |
4.6 / 5 (19) |
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(PhysOrg.com) -- Physicists at Harvard University have created a quantum gas microscope that can be used to observe single atoms at temperatures so low the particles follow the rules of quantum mechanics, ...
Portable Precision: A New Type of Atomic Clock
Dec 10, 2008 |
4.3 / 5 (7) |
4
(PhysOrg.com) -- The most accurate atomic clocks in the world are based on the output of cesium atoms. These ultra-precise fountain clocks measure the frequency and time interval of seconds by using a fountain-like movement ...
New electron microscopy images reveal the assembly of HIV
Medicine & Health / HIV & AIDS
Jun 23, 2009 |
4.7 / 5 (3) |
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Scientists at the European Molecular Biology Laboratory (EMBL) and the University Clinic Heidelberg, Germany, have produced a three-dimensional reconstruction of HIV (Human Immunodeficiency Virus), which shows ...
