When vibrations increase on cooling: Anti-freezing observed

An international team has observed an amazing phenomenon in a nickel oxide material during cooling: Instead of freezing, certain fluctuations actually increase as the temperature drops. Nickel oxide is a model system that ...

Mott insulator exhibits a sharp response to electron injection

In a finding that will give theorists plenty to ponder, an all-RIKEN team has observed an unexpected response in an exotic material known as a Mott insulator when they injected electrons into it. This observation promises ...

Exotic superconductors: The secret that wasn't there

A single measurement result is not a proof—this has been shown again and again in science. We can only really rely on a research result when it has been measured several times, preferably by different research teams, in ...

Physicists uncover secrets of world's thinnest superconductor

Physicists from across three continents report the first experimental evidence to explain the unusual electronic behavior behind the world's thinnest superconductor, a material with myriad applications because it conducts ...

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