Pith Number

pith:K6ZC6UQJ

pith:2026:K6ZC6UQJ765QNBCV4NRH2VNL5K

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A Unified Understanding of the Experimental Controlling of the T$_\text{c}$ of La$_3$Ni$_2$O$_7$

Fan Yang, Jia-Heng Ji, Ming Zhang, Yu-Bo Liu, Zeyu Chen

A bilayer t-J model explains all observed ways to raise or lower Tc in La3Ni2O7 through J_perp and orbital filling.

arxiv:2603.14519 v4 · 2026-03-15 · cond-mat.supr-con

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\usepackage{pith}
\pithnumber{K6ZC6UQJ765QNBCV4NRH2VNL5K}

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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

✓ Portable graph bundle live · download bundle · merged state

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

This model exhibits a Tc-controlling behavior well analogous to the hole-doped overdoped cuprates, due to near quarter-filling of the d_x2-y2 orbital, and Tc follows the variation of J_perp.

C2weakest assumption

The previously proposed effective d_x2-y2-orbital bilayer t-J model with parameters taken from first-principles calculations accurately captures the low-energy physics and pairing mechanism of La3Ni2O7.

C3one line summary

The d_x2-y2 bilayer t-J model unifies Tc control in La3Ni2O7 via particle-hole asymmetry under doping and dependence on the perpendicular exchange J_perp.

Formal links

2 machine-checked theorem links

Cited by

5 papers in Pith

Enhanced $s^\pm$-wave superconductivity in electron-doped La$_3$Ni$_2$O$_7$

Nearly perfect Fermi surface nesting in hole-doped La$_3$Ni$_2$O$_7$ enables bulk superconductivity without pressure or strain

Superconductivity in Ruddlesden-Popper nickelates: a review of recent progress, focusing on thin films

Interlayer hybridization enables superconductivity in bilayer nickelates

Superconductivity in bilayer La$_3$Ni$_2$O$_7$: A review focusing on the strong-coupling Hund's rule assisted pairing mechanism

Receipt and verification

First computed	2026-05-20T00:04:28.267796Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57b22f5209ffbb068455e3627d55abeaa1683e0f226b49a0f4b76fa46c5e3c4a

Aliases

arxiv: 2603.14519 · arxiv_version: 2603.14519v4 · doi: 10.48550/arxiv.2603.14519 · pith_short_12: K6ZC6UQJ765Q · pith_short_16: K6ZC6UQJ765QNBCV · pith_short_8: K6ZC6UQJ

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/K6ZC6UQJ765QNBCV4NRH2VNL5K \
  | 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: 57b22f5209ffbb068455e3627d55abeaa1683e0f226b49a0f4b76fa46c5e3c4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42c43d849d0d602a42ab94ce586c1679348867a52f1fbe912d9befdc818196a2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2026-03-15T17:56:47Z",
    "title_canon_sha256": "5cd544b9bd06f0557eee0c5b9a577738fb452bd4222bd060f861f2b17116496e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.14519",
    "kind": "arxiv",
    "version": 4
  }
}