Pith Number

pith:NK2VFV7X

pith:2025:NK2VFV7X56LD6KPHE53ATAQ2SM

not attested not anchored not stored refs pending

Higher-Order-Phonon Scattering Governs Targeted Control of Heat Conduction in Bulk Boron Arsenide

Dongkai Pan, Han Meng, Nuo Yang, Shixian Liu, Tianhao Li, Yangjun Qin

Four-phonon scattering turns targeted phonon excitation into predominantly suppressive control of thermal conductivity in bulk boron arsenide.

arxiv:2510.07934 v7 · 2025-10-09 · cond-mat.mtrl-sci · physics.comp-ph

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\pithnumber{NK2VFV7X56LD6KPHE53ATAQ2SM}

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4 Citations open

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Claims

C1strongest claim

In the combined three-phonon plus four-phonon (3ph+4ph) framework, the strongest suppression occurs at 20.5 THz, where the relative thermal conductivity decreases to 0.828 and 0.415 for excitation intensities of 5 and 25, respectively.

C2weakest assumption

The modeling assumes that targeted phonon excitation can be realized experimentally at the stated intensities while leaving the lattice temperature and other scattering channels essentially unchanged, and that the phonon Boltzmann transport equation remains valid under this non-equilibrium drive.

C3one line summary

Targeted phonon excitation at 20.5 THz suppresses thermal conductivity in bulk BAs to 0.828 and 0.415 of its unexcited value at intensities 5 and 25 when four-phonon processes are accounted for.

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-06-10T01:09:44.863524Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ab552d7f7ef963f29e7277609821a9300352dc14bdb6bd1a6306230d6f8ea47

Aliases

arxiv: 2510.07934 · arxiv_version: 2510.07934v7 · doi: 10.48550/arxiv.2510.07934 · pith_short_12: NK2VFV7X56LD · pith_short_16: NK2VFV7X56LD6KPH · pith_short_8: NK2VFV7X

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/NK2VFV7X56LD6KPHE53ATAQ2SM \
  | 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: 6ab552d7f7ef963f29e7277609821a9300352dc14bdb6bd1a6306230d6f8ea47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f69237b2d655d72aac27cd5b8e26433e898d03badc44c4d06574316b8bcf0222",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2025-10-09T08:33:24Z",
    "title_canon_sha256": "c182005626826f9894e9dc2b7b8bcfdf4c25d2ef1dd2fa6269093d1721a67578"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2510.07934",
    "kind": "arxiv",
    "version": 7
  }
}