Physics

Possible permanent Dirac- to Weyl-semimetal phase transition by ion implantation

W. J. Lee, Y. A. Salawu, et al.

This groundbreaking research led by Won Jun Lee and colleagues unveils the first potential permanent transition from a Dirac to a Weyl-semimetal phase in a single topological semimetal via ion implantation. The team discovered this transformative effect by implanting nonmagnetic Au ions, as evidenced by dramatic changes in Raman spectra and magnetoresistance measurements, highlighting a unique method to achieve this phase transition.