We gratefully acknowledge support from
the Simons Foundation and member institutions.
Full-text links:

Download:

Current browse context:

cond-mat.mes-hall

Change to browse by:

References & Citations

Bookmark

(what is this?)
CiteULike logo BibSonomy logo Mendeley logo del.icio.us logo Digg logo Reddit logo

Condensed Matter > Mesoscale and Nanoscale Physics

Title: Chiral anomalies in 3D spin-orbit coupled metals: electrical, thermal, and gravitational anomaly

Abstract: The discovery of a chiral anomaly in Weyl semimetals, the non-conservation of chiral charge and energy across two opposite chirality Weyl nodes, has sparked immense interest in understanding its impact on various physical phenomena. Here, we demonstrate the existence of electrical, thermal, and gravitational quantum chiral anomalies in 3D spin-orbit coupled systems. Notably, these anomalies involve chiral charge transfer across two Fermi surfaces linked to a single Weyl-like point, rather than across opposite chirality Weyl nodes as in Weyl semimetals. Our findings reveal that the Berry curvature flux piercing the Fermi surface plays a critical role in distinguishing the `chirality' of the carriers and the corresponding chiral charge and energy transfer. Importantly, we demonstrate that these quantum chiral anomalies lead to interesting thermal spin transport such as the spin Nernst effect. Our results suggest that 3D spin-orbit coupled metals offer a promising platform for investigating the interplay between quantum chiral anomalies and charge and spin transport in non-relativistic systems.
Comments: 14 pages, and 4 figures. Seeking feedback, criticism or comments on this paper
Subjects: Mesoscale and Nanoscale Physics (cond-mat.mes-hall); Materials Science (cond-mat.mtrl-sci); High Energy Physics - Theory (hep-th)
DOI: 10.1103/PhysRevB.108.045405
Cite as: arXiv:2301.02965 [cond-mat.mes-hall]
  (or arXiv:2301.02965v1 [cond-mat.mes-hall] for this version)

Submission history

From: Amit Agarwal [view email]
[v1] Sun, 8 Jan 2023 03:09:37 GMT (1157kb,D)

Link back to: arXiv, form interface, contact.