Ab Initio Study of Chiral Phonons in Ternary YAlSi Compound

Ternary compound YAlSi crystallizes with orthorhombic Cmcm symmetry. This structure contains Y–Si pairs of atoms, creating honeycomb-like sublattices. In this paper, we investigate the dynamical properties of the system, focusing on the chiral modes. These modes are associated with the circular moti...

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Bibliographic Details
Published in:Crystals
Main Authors: Surajit Basak, Andrzej Ptok
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Subjects:
ab initio
DFT
phonons
band structure
chiral phonons
Online Access:https://www.mdpi.com/2073-4352/12/3/436
Description
Summary:Ternary compound YAlSi crystallizes with orthorhombic Cmcm symmetry. This structure contains Y–Si pairs of atoms, creating honeycomb-like sublattices. In this paper, we investigate the dynamical properties of the system, focusing on the chiral modes. These modes are associated with the circular motion of the atoms. We show that the chiral modes can be realized in the YAlSi compound, and it makes this compound suitable for further experimental study of the chiral phonons.
ISSN:2073-4352

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