Kondo breakdown in a spin-1/2 chain of adatoms on a Dirac semimetal

Bimla Danu, Matthias Vojta, Fakher F. Assaad +1

We consider a spin-1/2 Heisenberg chain coupled via a Kondo interaction to two-dimensional Dirac fermions. The Kondo interaction is irrelevant at the \textit{decoupled} fixed-point…