Pith Number

pith:6RMPAD23

pith:2026:6RMPAD23YNWYAJT5P2JSUAW7RX

not attested not anchored not stored refs pending

Spin Fluctuations in the Rare-Earth Doped Bilayer Nickelates

Dao-Xin Yao, David Tam, Devashibhai Adroja, Gang Wang, Honglin Zhou, Huiqian Luo, Jinguang Cheng, Michael Marek Koza, Xinman Ye, Zhilun Lu

Rare-earth doping splits the spin fluctuation modes in bilayer nickelates and raises the interlayer coupling to 69-73 meV.

arxiv:2601.14946 v2 · 2026-01-21 · cond-mat.supr-con · cond-mat.str-el

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\pithnumber{6RMPAD23YNWYAJT5P2JSUAW7RX}

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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

Our results are consistent with an enhanced interlayer coupling SJ⊥ within the stripe-type Heisenberg model framework, where the estimated SJ⊥ value is in the range of about 69 to 73 meV for the rare-earth doped bilayer nickelates.

C2weakest assumption

That the newly observed split modes and the 60 meV feature arise purely from enhanced interlayer exchange in a stripe Heisenberg model and are not significantly altered by doping-induced changes in crystal-field levels, disorder, or other magnetic interactions.

C3one line summary

Rare-earth doping splits the flat 45 meV spin-fluctuation mode and adds a 60 meV feature in La3Ni2O7-δ, consistent with enhanced interlayer coupling SJ⊥ of 69–73 meV in the stripe Heisenberg model.

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-06-01T01:02:29.484898Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f458f00f5bc36d80267d7e932a02df8dd464f2f735ccacfb17abdfdb4de00963

Aliases

arxiv: 2601.14946 · arxiv_version: 2601.14946v2 · doi: 10.48550/arxiv.2601.14946 · pith_short_12: 6RMPAD23YNWY · pith_short_16: 6RMPAD23YNWYAJT5 · pith_short_8: 6RMPAD23

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/6RMPAD23YNWYAJT5P2JSUAW7RX \
  | 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: f458f00f5bc36d80267d7e932a02df8dd464f2f735ccacfb17abdfdb4de00963

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "404da041528609d2717c5b7d6916fbde5e48911be01feecc83da4d5cbf2543ef",
    "cross_cats_sorted": [
      "cond-mat.str-el"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2026-01-21T12:43:43Z",
    "title_canon_sha256": "3a93e7b25e0678d0d28d9e63e36a85fe5ba6d6ab0c61fa30ef24c82c2cc6f053"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.14946",
    "kind": "arxiv",
    "version": 2
  }
}