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Physicists measured the quantum geometry of electrons in solids.
A new study has allowed physicists from the Massachusetts Institute of electrons within crystalline materials at a quantum level. Quantum geometry, which had previously been limited to theoretical predictions, has now been directly observed, enabling unprecedented avenues for manipulating quantum material properties, according to the study.
The quantum materials beyond the one tested in this study.
The research employed angle-resolved photoemission spectroscopy (ARPES), a technique previously used by Comin and his colleagues to examine quantum properties. The team adapted ARPES to directly measure quantum geometry in a material known as kagome metal, which features a lattice structure with unique electronic properties. Mingu Kang, first author of the paper and a Kavli Postdoctoral Fellow at Cornell University, noted that this measurement became possible due to collaboration between experimentalists and theorists from multiple institutions, including South Korea during the pandemic.
These experiences underscore the collaborative and resourceful efforts involved in realising this scientific breakthrough. This advancement offers new possibilities in understanding the quantum behaviour of materials, paving the way for innovations in computing, electronics, and magnetic technologies, as reported in Nature Physics.
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