
When measuring the properties of a particular material, you want to make sure your sample is as clean as possible. But sometimes a well-intentioned effort to purify can make things worse.
Just ask Lindsay Greer, a professor of materials science at the University of Cambridge. He and his colleagues discovered measurements they reported in 2022 were actually an artifact of a cleaning agent used to prepare their sample.
Greer became aware of the issue during unsuccessful attempts to replicate his lab’s discovery of magnetic properties in an alloy their collaborators had made. Instead, they found oxidation from a cleaning product had contaminated their original results. The error led to a retraction, a declined grant, a commentary describing their troubleshooting — and a story about science working as it should.
Continue reading ‘Cosmic magnet’ study retracted after cleaning agent wipes away results