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Riddle of strangely behaving magnetic material solved

Image Ames Laboratory researchers Bruce Harmon and Yongbin Lee  have found an accurate way to explain the magnetic properties of lanthanum, cobalt and oxygen (LaCoO3) that has mystified the scientific community for decades.  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 raised, it becomes magnetic.

Ames Laboratory scientists discover new family of quasicrystals

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.  Their research resulted in finding the only known magnetic rare earth icosahedral binary quasicrystals, now providing a “matched set†of magnetic quasicrystals and their closely related periodic cousins.

Resistivity switch is window to role of magnetism in iron-based superconductors

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.


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