Chiral topological metals with multiple types of quasiparticle fermions and large spin Hall effect in the SrGePt family materials

We present a prediction of chiral topological metals with several classes of unconventional quasiparticle fermions in a family of SrGePt-type materials in terms of first-principles calculations. In these materials, fourfold spin-3/2 Rarita-Schwinger-Weyl (RSW) fermion, sixfold excitation, and Weyl f...

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Veröffentlicht in:	arXiv.org 2023-10
Hauptverfasser:	Shen, Yi, Jin, Yahui, Ge, Yongheng, Chen, Mingxing, Zhu, Ziming
Format:	Artikel
Sprache:	eng
Schlagworte:	Brillouin zones Coupling (molecular) Electromagnetism Electron spin Electron states Elementary excitations Fermions First principles Hall effect Physics - Materials Science Spin-orbit interactions Topology
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