Quantum Surprises in Ultra-Clean Materials Redefine Metal Physics

Researchers have discovered new phenomena in an ultra-clean sample of SrVO3, challenging existing theories on electron correlations in metals. Credit: SciTechDaily.com

The international research team—from the Paul Drude Institute of Solid State Electronics , Germany; Oak Ridge National Laboratory ; Pennsylvania State University; University of Pittsburgh; the Pittsburgh Quantum Institute; and University of Minnesota—believes their findings will prompt a re-evaluation of current theories on electron correlation effects, shedding light on the origins of valuable phenomena in these systems, including magnetic properties, high-temperature superconductivity, and...

Dr. Matt Brahlek, first author of the study published today, quantifies the improvement: ”A simple measure of material purity is the ratio of how easily electricity flows at room temperature compared to low temperature, called the residual resistivity ratio, RRR value. If the metal contains many defects RRR values are low, typically around 2-5.

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Quantum internet breakthrough after 'quantum data' transmitted through standard fiber optic cable for 1st timeDrew is a freelance science and technology journalist with 20 years of experience. After growing up knowing he wanted to change the world, he realized it was easier to write about other people changing it instead.
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