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Solitons show up in uranium Scientists have observed highly localized solitary vibrations, or solitons, in a three-dimensional solid for the first time. The solitons exist in crystals of uranium heated to temperatures of 450K. Although they were predicted to exist in 3D solids some 20 years ago, conclusive evidence for them has never been obtained until now (Phys. Rev. Lett. 96 125501). Solitons are stable localized waves that propagate through a medium without spreading.
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