Pith Number

pith:EPYMG2P3

pith:2026:EPYMG2P3R2SANPAIOO5RWWUNVI

not attested not anchored not stored refs resolved

Machine-learning-identified two-dimensional van der Waals multiferroics for four-state nonvolatile memory

Hao Jin, Tao Wang, Zhibin Tan

The AuCrP2S6 monolayer combines ferromagnetism and out-of-plane ferroelectricity with bulk photovoltaic readout to support four-state nonvolatile memory in one atomic layer.

arxiv:2605.14303 v1 · 2026-05-14 · cond-mat.mtrl-sci

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\usepackage{pith}
\pithnumber{EPYMG2P3R2SANPAIOO5RWWUNVI}

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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

AuCrP2S6 monolayer emerges as a representative system with a ferromagnetic ground state, a sizable out-of-plane polarization of 7.46 pC/m, and a moderate ferroelectric switching barrier of ~130 meV/f.u. The nonlinear optical response mediated by the bulk photovoltaic effect provides a dual-channel probe of the ferroic orders.

C2weakest assumption

The machine-learning model trained on the ABC2X6 family accurately ranks synthesizable multiferroic candidates, and the subsequent first-principles calculations correctly capture both the ground-state orders and the bulk photovoltaic effect response needed for non-destructive four-state readout.

C3one line summary

Machine-learning screening identifies AuCrP2S6 monolayer as a 2D multiferroic with 7.46 pC/m polarization and ferromagnetic order whose bulk photovoltaic effect enables non-destructive four-state readout.

References

12 extracted · 12 resolved · 0 Pith anchors

[1] Two-dimensional CIPS-InSe van der Waals heterostructure ferroelectric field effect transistor for nonvolatile memory applications, 2022

[2] 2D ferroic materials for nonvolatile memory applications, 2025

[3] Electrical and magnetic anisotropies in van der Waals multiferroic CuCrP2S6, 2023

[4] Evidence for a single-layer van der Waals multiferroic, 2022

[5] Evidence for multiferroicity in single -layer CuCrSe2, 2024

Receipt and verification

First computed	2026-05-17T23:39:10.073811Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23f0c369fb8ea406bc0873bb1b5a8daa05dba76ba27c483af0e2acf3c293cd14

Aliases

arxiv: 2605.14303 · arxiv_version: 2605.14303v1 · doi: 10.48550/arxiv.2605.14303 · pith_short_12: EPYMG2P3R2SA · pith_short_16: EPYMG2P3R2SANPAI · pith_short_8: EPYMG2P3

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/EPYMG2P3R2SANPAIOO5RWWUNVI \
  | 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: 23f0c369fb8ea406bc0873bb1b5a8daa05dba76ba27c483af0e2acf3c293cd14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "857438d5f46c93e8075a756ff695e1d8d3255dae4d9038f4c38bb913fb7295e9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2026-05-14T03:10:16Z",
    "title_canon_sha256": "67ef7e30ff1d521a097530e11c7b83a352efeccad98e7e3b08c6bd10619c32a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.14303",
    "kind": "arxiv",
    "version": 1
  }
}