Pith Number

pith:O2VM7TFB

pith:2026:O2VM7TFBAK4C262B473KGRKOKK

not attested not anchored not stored refs resolved

Unified definition of ferroelectricity

Hongjun Xiang, Laurent Bellaiche, Shihan Deng, Wei Luo

A unified definition of ferroelectricity uses switchable polarization differences between energetically equivalent states to cover both conventional and quantum cases.

arxiv:2605.14328 v1 · 2026-05-14 · cond-mat.mtrl-sci · cond-mat.mes-hall · physics.comp-ph

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\usepackage{pith}
\pithnumber{O2VM7TFBAK4C262B473KGRKOKK}

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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

we introduce a unified definition based on switchable polarization differences between energetically equivalent states, which naturally encompasses conventional and quantum ferroelectrics... we identify a new type of quantum ferroelectric in which the quantized polarization arises from arbitrary ionic displacements

C2weakest assumption

That the identified states are truly energetically equivalent and that the polarization difference is experimentally switchable without additional hidden barriers or instabilities not captured in the high-throughput screening.

C3one line summary

A new definition of ferroelectricity via switchable polarization differences unifies conventional and quantum cases and identifies viable new materials such as Ba3I6 and Cs2PdC2 with low switching barriers.

References

1 extracted · 1 resolved · 0 Pith anchors

[1] dipole locking 2001

Receipt and verification

First computed	2026-05-17T23:39:09.749400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76aacfcca102b82d7b41e7f6a3454e529b6804b681cae13b6f9a34ff7620bd2b

Aliases

arxiv: 2605.14328 · arxiv_version: 2605.14328v1 · doi: 10.48550/arxiv.2605.14328 · pith_short_12: O2VM7TFBAK4C · pith_short_16: O2VM7TFBAK4C262B · pith_short_8: O2VM7TFB

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/O2VM7TFBAK4C262B473KGRKOKK \
  | 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: 76aacfcca102b82d7b41e7f6a3454e529b6804b681cae13b6f9a34ff7620bd2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8d7dfa119980714a7a067d0418164a8f47cc81f6dadfb7c0158f37efefdb54d",
    "cross_cats_sorted": [
      "cond-mat.mes-hall",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2026-05-14T03:45:08Z",
    "title_canon_sha256": "aeb1d3994339cc4053985cacd664fcb543c1f5b5e21c199acc0ba5605f969632"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.14328",
    "kind": "arxiv",
    "version": 1
  }
}