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Latest Ames Laboratory Stories

Researchers See Rare-earth-like Magnetic Properties In Iron
2014-04-30 14:11:06

Ames Laboratory Scientists at the Department of Energy’s Ames Laboratory have observed magnetic properties typically associated with those observed in rare-earth elements in iron. These properties are observed in a new iron based compound that does not contain rare earth elements, when the iron atom is positioned between two nitrogen atoms. The discovery opens the possibility of using iron to provide both the magnetism and permanence in high-strength permanent magnets, like those used in...

2014-01-20 10:28:56

Scientists at the U.S. Department of Energy's Ames Laboratory have demonstrated broadband terahertz (THz) wave generation using metamaterials. The discovery may help develop noninvasive imaging and sensing, and make possible THz-speed information communication, processing and storage. The results appeared in the Jan. 8 issue of Nature Communications. Terahertz electromagnetic waves occupy a middle ground between electronics waves, like microwave and radio waves, and photonics waves, such...

2013-06-24 10:35:52

Materials scientists at the U.S. Department of Energy’s (DOE) Ames Laboratory  have found an accurate way to explain the magnetic properties of a compound that has mystified the scientific community for decades. The compound of lanthanum, cobalt and oxygen (LaCoO3) has been a puzzle for over 50 years, due to its strange behavior. While most materials tend to lose magnetism at higher temperatures, pure LaCoO3 is a non-magnetic semiconductor at low temperatures, but as the temperature is...

Scientists Discover New Family Of Quasicrystals
2013-06-10 15:38:35

Ames Laboratory Scientists at the U.S. Department of Energy´s (DOE) Ames Laboratory have discovered a new family of rare-earth quasicrystals using an algorithm they developed to help pinpoint them. Quasicrystalline materials may be found close to crystalline phases that contain similar atomic motifs, called crystalline approximants. And just like fishing experts know that casting a line in the right habitat hooks the big catch, the scientists used their knowledge to hone in on just...

Resistivity Switch Plays Role Of Magnetism In Iron-based Superconductors
2013-06-06 13:31:12

Ames Laboratory Physicists at the U.S. Department of Energy´s Ames Laboratory have discovered surprising changes in electrical resistivity in iron-based superconductors. The findings, reported in Nature Communications, offer further evidence that magnetism and superconductivity are closely related in this class of novel superconductors. “We found that the directions of smallest and largest resistivity within the conducting layers are significantly dependent on the composition...

Improving The Process To Recycle Rare-earth Materials
2012-10-25 10:07:46

Recycling keeps paper, plastics, and even jeans out of landfills. Could recycling rare-earth magnets do the same? Perhaps, if the recycling process can be improved. Scientists at the U.S. Department of Energy´s (DOE) Ames Laboratory are working to more effectively remove the neodymium, a rare earth element, from the mix of other materials in a magnet. Initial results show recycled materials maintain the properties that make rare-earth magnets useful. The current rare earth...

2012-05-31 13:19:32

Findings could have applications in high-speed communications fields. Graphene has caused a lot of excitement among scientists since the extremely strong and thin carbon material was discovered in 2004. Just one atom thick, the honeycomb-shaped material has several remarkable properties combining mechanical toughness with superior electrical and thermal conductivity. Now a group of scientists at Iowa State University and the Department of Energy's Ames Laboratory, led by physicist...

2012-02-29 00:39:29

Genetic mutations to cellulose in plants could improve the conversion of cellulosic biomass into biofuels, according to a research team that included two Iowa State University chemists. Mei Hong, an Iowa State professor of chemistry and an associate of the U.S. Department of Energy's Ames Laboratory, and Tuo Wang, an Iowa State graduate student in chemistry, contributed their expertise in solid-state nuclear magnetic resonance spectroscopy to the study. The study was led by Seth DeBolt,...

Image 1 - Helping Astronauts Make Their Drinking Water Clean
2011-09-15 13:18:37

  Bob Lipert held up a syringe, attached a plastic cartridge and demonstrated how chemistry developed at Iowa State University is helping astronauts and cosmonauts make sure they have safe drinking water at the International Space Station. Each cartridge contains a thin, one-centimeter disk that's loaded with chemistry, said Lipert, an associate scientist with Iowa State's Institute for Physical Research and Technology and an associate of the U.S. Department of Energy's Ames...

2011-02-21 13:40:10

Iowa State part of materials science collaboration highlighted during meeting An Iowa State theoretical physicist will describe the latest ideas in high-temperature superconductivity during the annual meeting of the American Association for the Advancement of Science Feb. 17-21 in Washington, D.C. Jörg Schmalian, an Iowa State professor of physics and astronomy and an associate of the U.S. Department of Energy's Ames Laboratory, will be part of a symposium addressing the 100-year history...


Word of the Day
bodacious
  • Remarkable; prodigious.
  • Audacious; gutsy.
  • Completely; extremely.
  • Audaciously; boldly.
  • Impressively great in size; enormous; extraordinary.
This word is probably from the dialectal 'boldacious,' a blend of 'bold' and 'audacious.'
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