Pith Number

pith:DEMUPOI7

pith:2026:DEMUPOI7BRN3JJSLYN7DLWXGYR

not attested not anchored not stored refs resolved

Switchable Surface Linear Photogalvanic Effect in the Magnetic Weyl Semimetal Co3Sn2S2

Aymen Nomani, Hridis Pal, Kai Chen, Niket Shah, Pavan Hosur

Unitary crystal symmetries on the surface of Co3Sn2S2 force sign reversals in the linear photogalvanic photocurrent at specific light polarization angles when magnetization flips, while extrinsic contributions stay large from Fermi-arc DOS.

arxiv:2605.14107 v1 · 2026-05-13 · cond-mat.mes-hall · cond-mat.mtrl-sci · cond-mat.other

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\usepackage{pith}
\pithnumber{DEMUPOI7BRN3JJSLYN7DLWXGYR}

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Record completeness

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2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

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The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

Unitary crystal symmetries on the surface produce characteristic sign reversals of the total photocurrent at certain polarization angles upon flipping the magnetization, while the extrinsic contribution displays a large magnitude due to the enhanced density of states associated with Fermi-arc surface states.

C2weakest assumption

The diagrammatic formalism and Green's-function approach accurately capture the nonlinear response without significant higher-order corrections or material-specific band-structure details that could alter the reported scaling and symmetry constraints.

C3one line summary

Surface LPGE in Co3Sn2S2 is magnetization-switchable with sign reversals at specific angles, dominated by extrinsic Fermi-arc contributions showing linear temperature dependence and omega to the -2.2 frequency scaling.

References

71 extracted · 71 resolved · 2 Pith anchors

[1] Defining ˆHk as the Bloch Hamiltonian for a WSM slab FIG. 1. The four Feynman diagrams used to calculateχ µαβ. The dotted lines represent the output currentjwhile the wavy solid lines represent extern 2019

[2] O. Vafek and A. Vishwanath, Dirac Fermions in Solids: From High-Tc Cuprates and Graphene to Topological In- sulators and Weyl Semimetals, Annual Review of Con- densed Matter Physics5, 83 (2014) 2014

[3] A. A. Burkov, Weyl Metals, Annual Review of Condensed Matter Physics9, 359 (2018). 9 2018

[4] A. A. Burkov, Topological semimetals, Nature Materials 15, 1145 EP (2016) 2016

[5] Topological Materials: Weyl Semimetals 2017 · arXiv:1611.04182

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-17T23:39:12.039592Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

191947b91f0c5bb4a64bc37e35dae6c459dcb2b2fc77540f4d606e43f8be9e88

Aliases

arxiv: 2605.14107 · arxiv_version: 2605.14107v1 · doi: 10.48550/arxiv.2605.14107 · pith_short_12: DEMUPOI7BRN3 · pith_short_16: DEMUPOI7BRN3JJSL · pith_short_8: DEMUPOI7

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/DEMUPOI7BRN3JJSLYN7DLWXGYR \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 191947b91f0c5bb4a64bc37e35dae6c459dcb2b2fc77540f4d606e43f8be9e88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd38126d837452f140f8eea98bbc494741e08140a69879a128b39acfeb92da99",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci",
      "cond-mat.other"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2026-05-13T20:46:53Z",
    "title_canon_sha256": "7d9000613b90c0a46258e5079fade880e2184f07bf96ac1b59c6ea555d57cee3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.14107",
    "kind": "arxiv",
    "version": 1
  }
}