Pith Number

pith:LEEFQLHY

pith:2026:LEEFQLHYTOJ6KISLRIMYXXAFOT

not attested not anchored not stored refs pending

Cryogenic shock exfoliation for ultrahigh mobility rhombohedral graphite nanoelectronics

Aidan Keough, Andrea F. Young, Andrew Lucas, Audrey Hsu, Benjamin A. Foutty, Canxun Zhang, Gabriel Bargas, Ian Sackin, Jack H. Farrell, Kenji Watanabe, Ludwig Holleis, Martin E. Huber, Takashi Taniguchi, Thibault Charpentier, Wenjie Zhou, Yifan Jiang, Yi Guo, Youngjoon Choi, Zexing Chen

Cryogenic shock exfoliation produces large rhombohedral graphene flakes enabling devices with over 200 micrometer electron mean free paths.

arxiv:2604.21912 v2 · 2026-04-23 · cond-mat.mes-hall · cond-mat.mtrl-sci · cond-mat.str-el

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\usepackage{pith}
\pithnumber{LEEFQLHYTOJ6KISLRIMYXXAFOT}

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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

Transverse magnetic focusing reveals a disorder mean free path exceeding 200 μm at low temperatures, with uniform spin magnetism over 10x10 μm² areas and a size-driven crossover from Poiseuille to porous electron flow.

C2weakest assumption

That cryogenic shock exfoliation and low-pressure van der Waals assembly preserve rhombohedral stacking order without introducing defects or altering the electronic band structure in ways that affect the observed high mobility and hydrodynamics.

C3one line summary

Cryogenic shock exfoliation yields large rhombohedral graphene devices over 1300 square micrometers with 90% fabrication yield, mean free path exceeding 200 micrometers, and signatures of electron hydrodynamics.

Cited by

4 papers in Pith

Characterizing electronic scattering rates with transport in multiterminal devices

Visualizing orbital magnetism in electron doped rhombohedral multilayer graphene

Characterizing electronic scattering rates with transport in multiterminal devices

Receipt and verification

First computed	2026-07-07T03:18:56.111444Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5908582cf89b93e5224b8a198bdc0574f75c0a1917cce1d9a369f19141b5db0e

Aliases

arxiv: 2604.21912 · arxiv_version: 2604.21912v2 · doi: 10.48550/arxiv.2604.21912 · pith_short_12: LEEFQLHYTOJ6 · pith_short_16: LEEFQLHYTOJ6KISL · pith_short_8: LEEFQLHY

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/LEEFQLHYTOJ6KISLRIMYXXAFOT \
  | 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: 5908582cf89b93e5224b8a198bdc0574f75c0a1917cce1d9a369f19141b5db0e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82bf1b5873bc26046f06f954b9f49703aefa00d586db94cdb37d8897f4f09dba",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci",
      "cond-mat.str-el"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2026-04-23T17:56:37Z",
    "title_canon_sha256": "824565da162139af1745a5281090ba7e0ff4ebd172e2ff9d32f65cccab6b17ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.21912",
    "kind": "arxiv",
    "version": 2
  }
}