Pith Number

pith:TUWB35KN

pith:2026:TUWB35KNELDVBYZ4DVFGTIRNEH

not attested not anchored not stored refs resolved

Selective Octahedral Accommodation of Cr$^{3+}$ and Weak Magnetic Connectivity in the Sugilite Analogue KNa$_2$Cr$_2$Li$_3$Si$_{12}$O$_{30}$

Daisuke Nishio-Hamane, Hiroko Aruga Katori, Taishu Aoki, Yuya Haraguchi

Cr³⁺ ions in the sugilite analogue occupy only the octahedral sites with negligible antisite disorder and weak antiferromagnetic coupling.

arxiv:2605.12986 v1 · 2026-05-13 · cond-mat.mtrl-sci

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\usepackage{pith}
\pithnumber{TUWB35KNELDVBYZ4DVFGTIRNEH}

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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

Rietveld refinement of a composition-conserving antisite model gives x = 0.0024(18) in KNa₂[Cr_{2-x}Li_x][Li_{3-x}Cr_x]Si_{12}O_{30}, corresponding to a T2-site Cr occupancy of 0.0008(6). X-ray MEM analysis shows no detectable Cr-like density at T2. Magnetic susceptibility indicates weak antiferromagnetic interactions with θ_W = -4.78(7) K and no ordering above 1.8 K.

C2weakest assumption

The synthesized material exactly matches the nominal stoichiometry and that the antisite disorder model fully accounts for any deviations without undetected impurities or other defects influencing the diffraction and magnetic data.

C3one line summary

The Cr analogue KNa2Cr2Li3Si12O30 has nearly complete octahedral Cr3+ occupancy with minimal antisite disorder and exhibits weak antiferromagnetic interactions without ordering above 1.8 K.

References

2 extracted · 2 resolved · 0 Pith anchors

[1] 1 C. Broholm, R. J. Cava, S. A. Kivelson, D. G. Nocera, M. R. Norman, and T. Senthil, Science 367, eaay0668 (2020). 2 J. R. Chamorro, T. M. McQueen, T. T. Tran, Chem. Rev. 121, 2898–2934 (2021). Fig 2020

[2] The broken line indicates the Curie-Weiss fit over 100-300 K 2018

Receipt and verification

First computed	2026-05-18T03:09:00.594489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d2c1df54d22c750e33c1d4a69a22d21ead30acdbc88d32952c4beceadf00f51

Aliases

arxiv: 2605.12986 · arxiv_version: 2605.12986v1 · doi: 10.48550/arxiv.2605.12986 · pith_short_12: TUWB35KNELDV · pith_short_16: TUWB35KNELDVBYZ4 · pith_short_8: TUWB35KN

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/TUWB35KNELDVBYZ4DVFGTIRNEH \
  | 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: 9d2c1df54d22c750e33c1d4a69a22d21ead30acdbc88d32952c4beceadf00f51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e19fd2413aa511b14c9a3adc0889d5b7600fdc4e2fcfb28b8f619d785394f0c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2026-05-13T04:33:19Z",
    "title_canon_sha256": "405860c85f072c85d0c0f702f0defafb27d3d5d05d73e4e443a5e1476d053f21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.12986",
    "kind": "arxiv",
    "version": 1
  }
}