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Breakthrough Study Reveals YbB12's Unique Dual Properties

10/31/2025

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Summary

Story summary

Researchers at the University of Michigan report that quantum oscillations in the Kondo insulator ytterbium boride (YbB12) originate from the bulk.
The study, published in Physical Review Letters, challenges the view that oscillations are surface phenomena.
Using powerful magnetic fields, YbB12 can behave like a metal under certain conditions.
The results suggest a "new duality" in materials science, showing both metallic and insulating properties.

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Story summary

Researchers at the University of Michigan report that quantum oscillations in the Kondo insulator ytterbium boride (YbB12) originate from the bulk.
The study, published in Physical Review Letters, challenges the view that oscillations are surface phenomena.
Using powerful magnetic fields, YbB12 can behave like a metal under certain conditions.
The results suggest a "new duality" in materials science, showing both metallic and insulating properties.