Concept
Particule de Dirac
Publications associées (35)
High-throughput screening of Weyl semimetals
Nicola Marzari, Davide Campi, Davide Grassano
Topological Weyl semimetals represent a novel class of nontrivial materials, where band crossings with linear dispersions take place at generic momenta across reciprocal space. These crossings give rise to low -energy properties akin to those of Weyl fermi ...
College Pk2024Magnetic excitations in the topological semimetal YbMnSb2
We report neutron scattering measurements on YbMnSb2 which shed light on the nature of the magnetic moments and their interaction with Dirac fermions. Using half-polarized neutron diffraction we measured the field-induced magnetization distribution in the ...
AMER PHYSICAL SOC2023Dirac vs. Majorana HNLs (and their oscillations) at SHiP
SHiP is a proposed high-intensity beam dump experiment set to operate at the CERN SPS. It is expected to have an unprecedented sensitivity to a variety of models containing feebly interacting particles, such as Heavy Neutral Leptons (HNLs). Two HNLs or mor ...
2020Influence of anisotropy, tilt and pairing of Weyl nodes: the Weyl semimetals TaAs, TaP, NbAs and NbP star
By means of ab initio band structure methods and model Hamiltonians we investigate the electronic, spin and topological properties of four monopnictides crystallizing in bct structure. We show that the Weyl bands around a WP W1 or W2 possess a strong aniso ...
2020Emergence of Nontrivial Low-Energy Dirac Fermions in Antiferromagnetic EuCd2As2
Vladimir N. Strocov, Joël Mesot, Pierre Richard, Han Wang, Hang Li
Parity-time symmetry plays an essential role for the formation of Dirac states in Dirac semimetals. So far, all of the experimentally identified topologically nontrivial Dirac semimetals (DSMs) possess both parity and time reversal symmetry. The realizatio ...
WILEY-V C H VERLAG GMBH2020