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dc.contributor.authorLu, Yen-Wenen_US
dc.contributor.authorChou, Po-Haoen_US
dc.contributor.authorChung, Chung-Houen_US
dc.contributor.authorMou, Chung-Yuen_US
dc.date.accessioned2019-04-02T06:00:46Z-
dc.date.available2019-04-02T06:00:46Z-
dc.date.issued2019-01-22en_US
dc.identifier.issn2469-9950en_US
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevB.99.035141en_US
dc.identifier.urihttp://hdl.handle.net/11536/148739-
dc.description.abstractWe exploit topological semimetallic phases resulting from the Kondo screening in Anderson lattice models. It is shown that by including spin-orbit interactions both in the bulk electrons and in the hybridization between the conduction electrons and electrons in the f orbit, all types of topological semimetallic phases can be realized in Anderson lattice models. Specifically, upon either broken time-reversal symmetry or broken inversion symmetry, we find that either the Weyl semimetallic phase, Dirac semimetallic phase, or nodal-ring semimetallic phases always emerge between insulating phases and can be accessed by tuning either temperature or spin-orbit interaction. For Anderson lattice models with general three-dimensional spin-orbit hybridization between the conduction electrons and electrons in the f orbit, we find that Weyl nodal-ring semimetallic phases emerge between strong and weak topological insulating phases. Furthermore, in the presence of an exchange field, Weyl semimetallic phases form after two Weyl points of charge +/- 1 split off from a Dirac point at time-reversal momenta. On the other hand, when the spin-orbit interaction is included in the conduction electron, we find that upon the rotation symmetry being broken with anisotropic hopping amplitudes, a Weyl semimetallic phase emerges with a double Weyl node with charges of +/- 2. Furthermore, the Weyl semimetallic phases with charges of +/- 2 can be tuned into Weyl semimetallic phases with charges of +/- 1 through the inclusion of the Rashba spin-orbit interaction. Our analyses indicate that Anderson lattices with appropriate spin-orbit interactions provide a platform for realizing all types of topological semimetallic phases.en_US
dc.language.isoen_USen_US
dc.titleTunable topological semimetallic phases in Kondo lattice systemsen_US
dc.typeArticleen_US
dc.identifier.doi10.1103/PhysRevB.99.035141en_US
dc.identifier.journalPHYSICAL REVIEW Ben_US
dc.citation.volume99en_US
dc.contributor.department電子物理學系zh_TW
dc.contributor.departmentDepartment of Electrophysicsen_US
dc.identifier.wosnumberWOS:000456302900003en_US
dc.citation.woscount0en_US
Appears in Collections:Articles