Pith Number

pith:NWKAJW7B

pith:2026:NWKAJW7BOJXY3GZ7X6HJ7QDHDX

not attested not anchored not stored refs resolved

Geometric Percolation Threshold Defines Half-Metallic Window in Vacancy-Doped Titanium disulfides

Rudra Banerjee, Shrestha Dutta

Percolation of sulfur vacancies at roughly 12.5 percent concentration switches vacancy-doped titanium disulfide from an insulator to a half-metal.

arxiv:2605.01754 v1 · 2026-05-03 · cond-mat.mtrl-sci

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\usepackage{pith}
\pithnumber{NWKAJW7BOJXY3GZ7X6HJ7QDHDX}

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Record completeness

1 Bitcoin timestamp

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

the insulator-to-half-metal transition is governed by universal geometric percolation of the defect network... At critical vacancy concentration xc ≈ 12.5%, a percolation transition drives the majority-spin impurity band from flat, localized levels (W < 0.1 eV) to a dispersive 1.5 eV-wide band with 100% spin polarization and a minority-spin gap of 1.0 eV.

C2weakest assumption

That the supercell-size dependence (2×2 cells showing antiferromagnetism while 4×4 cells show ferromagnetism) arises solely from the presence or absence of a spanning percolation cluster rather than from finite-size artifacts, boundary conditions, or other details of the underlying electronic-structure calculations.

C3one line summary

Geometric percolation of Ti vacancies in 1T-TiS2 monolayers triggers half-metallic ferromagnetism at xc ≈ 12.5%, creating a functional window of 11% < x < 15% with 100% spin-polarized transport.

References

34 extracted · 34 resolved · 0 Pith anchors

[1] R. A. de Groot, F. M. Mueller, P. G. van Engen, and K. H. J. Buschow, New class of materials: Half-metallic ferromagnets, Phys. Rev. Lett.50, 2024 (1983) 2024

[2] S. A. Wolf, D. D. Awschalom, R. A. Buhrman, J. M. Daughton, S. von Molnár, M. L. Roukes, A. Y. Chtchelkanova, and D. M. Treger, Spintronics: A spin- based electronics vision for the future, Science294 2001

[3] E. C. Ahn, 2d materials for spintronic devices, npj 2D Materials and Applications4(2020) 2020

[4] Y. Liu, C. Zeng, J. Zhong, J. Ding, Z. M. Wang, and Z. Liu, Spintronics in two-dimensional materials, Nano- Micro Letters12(2020) 2020

[5] B. Huang, G. Clark, E. Navarro-Moratalla, D. R. Klein, R. Cheng, K. L. Seyler, D. Zhong, E. Schmidgall, M. A. McGuire, D. H. Cobden, W. Yao, D. Xiao, P. Jarillo- Herrero, and X. Xu, Layer-dependent fe 2017

Receipt and verification

First computed	2026-05-20T00:03:13.515801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d9404dbe1726f8d9b3fbf8e9fc0671dc98a20ae9c17533e79e5d631abf6b873

Aliases

arxiv: 2605.01754 · arxiv_version: 2605.01754v1 · doi: 10.48550/arxiv.2605.01754 · pith_short_12: NWKAJW7BOJXY · pith_short_16: NWKAJW7BOJXY3GZ7 · pith_short_8: NWKAJW7B

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/NWKAJW7BOJXY3GZ7X6HJ7QDHDX \
  | 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: 6d9404dbe1726f8d9b3fbf8e9fc0671dc98a20ae9c17533e79e5d631abf6b873

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dddb2644d2649efc1cde10ff0dbdd7831ab8afc4faa85d4ff2e68afac2dea085",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2026-05-03T07:24:07Z",
    "title_canon_sha256": "f92fda4f5a6e7a0dd2c7aeb55fc63823da95fd327e9e47329ed315083323b2b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.01754",
    "kind": "arxiv",
    "version": 1
  }
}