Lattice Dynamics of Altermagnetic Ruthenium Oxide RuO2

被引：0

作者：

Basak, S. ^{[1
]}

Ptok, A. ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Nucl Phys, WE Radzikowskiego 152, PL-31342 Krakow, Poland

来源：

ACTA PHYSICA POLONICA A | 2024年 / 145卷 / 02期

关键词：

topics; lattice dynamics; altermagnetism; RuO2; DFT;

D O I：

10.12693/APhysPolA.145.93

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Altermagnetic ruthenium oxide RuO2 crystallizes with P4(2)/mnm symmetry. Here, we discuss the lattice dynamics of this structure. We show and discuss the phonon dispersion and density of states. The phonon dispersion curves contain several Dirac nodal lines and highly degenerate Dirac points. We present the characteristic frequencies and their irreducible representations at the Gamma point. Theoretically obtained frequencies of the Raman active modes nicely reproduce the ones reported experimentally.

引用

页码：93 / 96

页数：74

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