48 citations · 537 across the 48 of their papers we have counts for
7 papers · 1 filter
Structural, electronic and topological properties of 3D TmBi compound
M. Ragragui, L. B. Drissi, S. Lounis +1
Using density functional theory based methods we report the structural, electronic and topological properties of the FCC crystal compound TmBi. This material is found to be dynamic…
Higher order topological matter and fractional chiral states
L. B. Drissi, S. Lounis, E. H. Saidi
We develop a chiral anomalous fermion hamiltonian proposal to study the higher order topological (HOT) phase with chiral symmetry fractionalized like $\mathcal{C}_{x}…
Lax Operator and superspin chains from 4D CS gauge theory
Y. Boujakhrout, E. H Saidi, R. Ahl Laamara +1
We study the properties of interacting line defects in the four-dimensional Chern Simons (CS) gauge theory with invariance given by the super-group family. F…
A signature index for third order topological insulators
L. B Drissi, E. H Saidi
In this work, we develop an index signature characterising the third order topological phases in 3D systems. This index is an alternating sum of monomial signatures of Higgs triple…
Magnetic Skyrmions: Theory and Applications
Lalla Btissam Drissi, El Hassan Saidi, Mosto Bousmina +1
Using the field theory method and coherent spin state approach, we investigate properties of magnetic solitons in spacetime while focussing on 1D kinks, 2D and 3D skyrmions. We als…
Domain Walls in Topological Tri-hinge Matter
Lalla Btissam Drissi, El Hassan Saidi
Using a link between graph theory and the geometry hosting higher order topological matter, we fill part of the missing results in the engineering of domain walls supporting gaples…