Pith Number

pith:4OXS72RU

pith:2026:4OXS72RUYDG4DMITNYLLG22XC6

not attested not anchored not stored refs pending

Metallic crossover through the tilt-free transition in La$_3$Ni$_2$O$_7$ at high pressure and temperature

Bastien Michon, Beatrice D'Al\`o, Bosen Wang, Elena Stellino, Ferenc Borondics, Francesco Capitani, Gergely N\'emeth, Jianping Sun, Jinguang Cheng, Paolo Postorino, Yingpeng Yu

The tilt-free structural transition in La3Ni2O7 drives a two-order-of-magnitude increase in carrier density, crossing from bad metal to good metal.

arxiv:2605.01651 v2 · 2026-05-03 · cond-mat.supr-con

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4OXS72RUYDG4DMITNYLLG22XC6}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

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

Infrared reflectivity measurements evidence a concomitant metallization, with a tremendous two-order-of-magnitude increase in carrier density, marking a crossover from a bad metal to a good metal.

C2weakest assumption

That changes in infrared reflectivity can be interpreted as a direct two-order-of-magnitude carrier density increase without major contributions from scattering rate variations or other optical effects.

C3one line summary

A metallic crossover from bad metal to good metal occurs at the tilt-free structural transition in La3Ni2O7 near 10-15 GPa, with carrier density rising by two orders of magnitude and similar signatures appearing above 544 K.

Receipt and verification

First computed	2026-05-26T01:03:31.858771Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3af2fea34c0cdc1b1136e16b36b5717b870564945597aa0dad03b89a7de310d

Aliases

arxiv: 2605.01651 · arxiv_version: 2605.01651v2 · doi: 10.48550/arxiv.2605.01651 · pith_short_12: 4OXS72RUYDG4 · pith_short_16: 4OXS72RUYDG4DMIT · pith_short_8: 4OXS72RU

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/4OXS72RUYDG4DMITNYLLG22XC6 \
  | 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: e3af2fea34c0cdc1b1136e16b36b5717b870564945597aa0dad03b89a7de310d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e687e68dbecd011d4f29adde550f3762f64a4a7eec420b107667529e68bf640",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2026-05-03T00:25:25Z",
    "title_canon_sha256": "80d1c93b2d255410f855c509d2cb293ea05d77c5672929ef8627bfbaf25ad7c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.01651",
    "kind": "arxiv",
    "version": 2
  }
}