0000000000679214

AUTHOR

Delia Guerra

showing 2 related works from this author

Tuning nodal line semimetals in trilayered systems

2018

We investigate two-dimensional trilayered quantum systems with multi-orbital conduction bands by focusing on the role played by the layer degree of freedom in setting the character of nodal line semimetals. The layer index can label the electronic states where the electrons reside in the unit cell and can enforce symmetry constraints in the electronic structure by protecting bands crossing. We demonstrate that both the atomic spin-orbit coupling and the removal of local orbital degeneracy can lead to different types of electronic transitions with nodal lines that undergo a changeover from a loop structure enclosing the center of the Brillouin zone to pockets winding around multiple high sym…

PhysicsCondensed matter physicsCondensed Matter - Mesoscale and Nanoscale PhysicsFermi levelGeneral Physics and AstronomyFOS: Physical sciences02 engineering and technologyElectronElectronic structureInvariant (physics)021001 nanoscience & nanotechnology01 natural sciencesBrillouin zonesymbols.namesakeAtomic electron transition0103 physical sciencesMesoscale and Nanoscale Physics (cond-mat.mes-hall)symbolsGeneral Materials SciencePhysical and Theoretical Chemistry010306 general physics0210 nano-technologyQuantumEigenvalues and eigenvectors
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Interplay Between Spin-Orbit Coupling and Structural Deformations in Heavy Transition-Metal Oxides with Tetrahedral Coordination

2018

Materials scienceCondensed matter physicsTransition metalTetrahedronGeneral Physics and AstronomySpin–orbit interactionActa Physica Polonica A
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