CeCo2P2 is identified as an antiferromagnetic topological nodal-line Kondo semimetal where magnetic order occurs above the Kondo temperature in non-heavy electrons and a glide-mirror-z symmetry plus Kondo effect creates a bulk topological nodal line.
Magnetic Weyl and Dirac Kondo semimetal phases in heterostructures
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
We study a layered three-dimensional heterostructure in which two types of Kondo insulators are stacked alternatingly. One of them is the topological Kondo insulator SmB 6 , the other one an isostructural Kondo insulator AB 6 , where A is a rare-earth element, e.g., Eu, Yb, or Ce. We find that if the latter orders ferromagnetically, the heterostructure generically becomes a magnetic Weyl Kondo semimetal, while antiferromagnetic order can yield a magnetic Dirac Kondo semimetal. We detail both scenarios with general symmetry considerations as well as concrete tight-binding calcu-lations and show that type-I as well as type-II magnetic Weyl/Dirac Kondo semimetal phases are possible in these heterostructures. Our results demonstrate that Kondo insulator heterostructures are a versatile platform for design of strongly correlated topological semimetals.
fields
cond-mat.str-el 1years
2024 1verdicts
UNVERDICTED 1representative citing papers
citing papers explorer
-
Discovery of an Antiferromagnetic Topological Nodal-line Kondo Semimetal
CeCo2P2 is identified as an antiferromagnetic topological nodal-line Kondo semimetal where magnetic order occurs above the Kondo temperature in non-heavy electrons and a glide-mirror-z symmetry plus Kondo effect creates a bulk topological nodal line.