Transport chirality generated by a tunable tilt of Weyl nodes in a van der Waals topological magnet

Afrin N. Tamanna, Ayesha Lakra, Xiaxin Ding, Entela Buzi, Kyungwha Park, Kamil Sobczak, Haiming Deng, Gargee Sharma, Sumanta Tewari and Lia Krusin-Elbaum ()
Additional contact information
Afrin N. Tamanna: The City College of New York—CUNY
Ayesha Lakra: The City College of New York—CUNY
Xiaxin Ding: The City College of New York—CUNY
Entela Buzi: The City College of New York—CUNY
Kyungwha Park: Virginia Tech
Kamil Sobczak: University of Warsaw
Haiming Deng: The City College of New York—CUNY
Gargee Sharma: Indian Institute of Technology-Mandi
Sumanta Tewari: Clemson University
Lia Krusin-Elbaum: The City College of New York—CUNY

Nature Communications, 2024, vol. 15, issue 1, 1-9

Abstract: Abstract Chirality — a characteristic handedness that distinguishes ‘left’ from ‘right’—is a fundamental property of quantum particles under broken symmetry intimately connected to their spins. Chiral fermions have been identified in Weyl semimetals through their unique electrodynamics arising from ‘axial’ charge imbalance between pairs of chiral Weyl nodes—the topologically protected ‘relativistic’ crossings of electronic bands. Chiral magnetotransport phenomena critically depend on the details of electronic band structure. However, the putative emergence of chiral electronic channels through shape altering of Weyl nodes is yet to be revealed. Here, we detect chirality-endowed linear conduction channels promoted by a tilt of Weyl bands in inversion-symmetric Weyl ferromagnet MnSb2Te4. The tuning of Weyl nodes is controlled with ionic hydrogen, which heals the system’s (Mn-Te) bond disorder and lowers the internode scattering. The reshaped Weyl states feature a doubled Curie temperature ≳50 K and a strong angular transport chirality synchronous with a rare field-antisymmetric longitudinal resistance—a low-field tunable ‘chiral switch’ that is rooted in the interplay of Berry curvature, chiral anomaly and a hydrogen-mediated form of Weyl nodes.

Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-024-53319-w Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-53319-w

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-024-53319-w

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().