Hourglass Weyl and Dirac nodal line phonons, and drumhead-like and torus phonon surface states in orthorhombic-type KCuS
Jianhua Wang, Hongkuan Yuan, Ying Liu, Feng Zhou, Xiaotian Wang, Gang Zhang
Abstract
-type structure can be viewed as a good platform to investigate the entanglement between HWNL phonons and DNL phonons and to realize the drumhead-like and torus phonon surface states.
Topics & Concepts
PhononDirac (video compression format)Surface phononPhysicsTorusCondensed matter physicsSurface (topology)Dispersion (optics)Line (geometry)HourglassSurface statesPhase (matter)Topology (electrical circuits)Symmetry (geometry)Geometric phaseNode (physics)Quantum mechanicsDispersion relationSemimetalQuantum entanglementTopological Materials and PhenomenaAdvanced Thermoelectric Materials and DevicesRare-earth and actinide compounds