Physicists from the United States, Germany and China have discovered nuclear effects that help bring about superconductivity in ytterbium dirhodium disilicide (YRS), one of the most-studied materials in a class of quantum critical compounds known as "heavy fermions." The discovery marks the first time that superconductivity has been observed in YRS, a composite material that physicists have studied for more than a decade in an effort to probe the quantum effects believed to underlie high-temperature superconductivity.
Metamaterials Boost Sensitivity of MRI Machines
A group of researchers from Russia, Australia and the Netherlands have developed a technology that can reduce Magnetic Resonance Imaging (MRI) scanning times by more than 50 percent, allowing hospitals to drastically increase the number of scans without changing equipment. Scientists achieved this leap in efficiency by placing a layer of metamaterials onto the bed of the scanner, thus improving the signal-to-noise ratio. Details of the research are available in Advanced Materials.
Scientists push boundaries of antimatter research in quest for answers
Scientists of the international ALPHA Collaboration have pushed the boundaries of antimatter research with a breakthrough studying the properties of antihydrogen. Published in the journal Nature, the collaboration's result improved the measurement of the charge of antihydrogen, essentially zero, by a factor of 20. The work is the latest contribution in the quest to chase down the answer to the basic antimatter question, "If matter and antimatter were created in equal amounts during the Big Bang, where did all the antimatter go?"
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