Phonon magnetochiral effect of band-geometric origin in Weyl semimetals

Abstract

The phonon magnetochiral effect consists of a nonreciprocity in the velocity or attenuation of acoustic waves when they propagate parallel and antiparallel to an external magnetic field. The first experimental observation of this effect has been reported recently in a chiral magnet and ascribed to the hybridization between acoustic phonons and chiral magnons. Here, we predict a potentially measurable phonon magnetochiral effect of electronic origin in chiral Weyl semimetals. Caused by the Berry curvature and the orbital magnetic moment, this effect is enhanced for longitudinal phonons by the chiral anomaly.

version accepted to PRL; 6 + 18 pages, 2 figures

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Cited by in corpus (20)

• Giant effective magnetic fields from optically driven chiral phonons in 4$f$ paramagnets
• Giant effective magnetic moments of chiral phonons from orbit-lattice coupling
• Lattice dynamics with molecular Berry curvature: chiral optical phonons
• Phonon helicity induced by electronic Berry curvature in Dirac materials
• Infinite Berry Curvature of Weyl Fermi Arcs
• Engineering exotic second-order topological semimetals by periodic driving
• Chiral-phonon-induced current in helical crystals
• Nonreciprocal optics and magnetotransport in Weyl metals as signatures of band topology
• Phonon-limited Transport and Fermi Arc Lifetime in Weyl Semimetals
• Anomalous sound attenuation in Weyl semimetals in magnetic and pseudomagnetic fields
• Anomaly-induced sound absorption in Weyl semimetals
• Detection of phonon helicity in nonchiral crystals with Raman scattering
• Nonreciprocal phonons in PT-symmetric antiferromagnet
• Detect Axial Gauge Fields with a Calorimeter
• Anomalous circular phonon dichroism in transition metal dichalcogenides
• Phonon helicity and Nieh-Yan Anomaly in the Kramers-Weyl semimetals of Chiral Crystals
• Non-trivial phonon dynamics and significant electron-phonon coupling of the high frequency modes in a Dirac semimetal
• Nonreciprocal phonon dichroism induced by Fermi pocket anisotropy in two-dimensional Dirac materials
• Theory of phonon instabilities in Weyl semimetals at high magnetic fields
• Observation of acoustic magneto-chiral anisotropy in $\alpha$-quartz