Pith. sign in

REVIEW 3 cited by

Raman spectroscopic evidence for linearly dispersed nodes and magnetic ordering in the topological semimetal V$_{1/3}$NbS$_2$

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2504.04590 v1 pith:TAHGELWB submitted 2025-04-06 cond-mat.str-el cond-mat.mtrl-sci

Shreenanda Ghosh , Chris Lygouras , Zili Feng , Mingxuan Fu , Satoru Nakatsuji , Natalia Drichko This is my paper · ORCID
classification cond-mat.str-elcond-mat.mtrl-sci
keywords electronicmagneticscatteringweylexcitationsnodessemimetalstructure
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
abstract

Weyl semimetals are characterized by an electronic structure with linearly dispersed nodes and distinguished chirality, protected by broken inversion or time reversal symmetry. The intercalated transition metal dichalcogenide V$_{1/3}$NbS$_2$ is proposed as a Weyl semimetal. In this study, we report polarization-resolved magnetic and electronic Raman scattering of this material, probing both the magnetic order and the electronic structure. The electronic scattering reveals a linear with frequency continuum of excitations, as the signature of electronic transitions within the proposed Weyl nodes in a two-dimensional electronic structure. Additionally, two-magnon excitations of V moments are observed near 15 meV in the magnetically ordered phase below 50 K. These excitations are well reproduced by calculations based on the Fleury-Loudon theory using spin wave exchange parameters derived from the neutron scattering data of this material and confirm the antiferromagnetic character of the order. These magnetic and electronic scattering, observed in the same spectra, provide independent spectroscopic evidence for a collinear antiferromagnetic Weyl semimetal state in V$_{1/3}$NbS$_2$.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Unconventional superlattice ordering in intercalated transition metal dichalcogenide V$_{1/3}$NbS$_2$

    cond-mat.mtrl-sci 2025-06 conditional novelty 8.0 of 10

    A new ABC-stacked R3̄c polytype of V1/3NbS2 is isolated and shown to be a low-carrier-density semimetal with a proposed noncollinear 120° spin spiral, distinct from the AB-stacked altermagnetic P6322 form.

  2. Stacking-dependent anisotropic altermagnetism in V$_{1/3}$NbS$_2$

    cond-mat.str-el 2026-07 conditional novelty 6.0 of 10

    In V1/3NbS2, the vanadium-layer stacking determines both the magnetic easy axis and the anomalous Hall response, with AB and ABC polytypes showing perpendicular A-type altermagnetic order.

  3. Symmetry, microscopy and spectroscopy signatures of altermagnetism

    cond-mat.mtrl-sci 2025-06 unverdicted

    A review of the symmetry, microscopic origin, and detection of altermagnetism, a collinear magnetic phase with alternating spin polarization in momentum space.

Pith tools