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First detailed electronic study of new nickelate superconductor finds 3D metallic state

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Unlike cuprates — the first known class of unconventional superconductors — the new nickelates are inherently metallic, sharing electrons with intervening layers of rare earth material to create a 3D metallic state. This is an entirely new type of ground state for transition metal oxides such as cuprates and nickelates, researchers said. It opens new […]

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Record-breaking terahertz laser beam

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Terahertz radiation is used for security checks at airports, for medical examinations and also for quality checks in industry. However, radiation in the terahertz range is extremely difficult to generate. Scientists have now succeeded in developing a terahertz radiation source that breaks several records: it is extremely efficient, and its spectrum is very broad — […]

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The salt of the comet

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Researchers have found an explanation for why very little nitrogen could previously be accounted for in the nebulous covering of comets: the building block for life predominantly occurs in the form of ammonium salts, the occurrence of which could not previously be measured. The salts may be a further indication that comet impacts may have […]