Pith Number

pith:GLWVQEDX

pith:2026:GLWVQEDXBXZTUXRQMWANI6IYX4

not attested not anchored not stored refs pending

Anomalous spin-pumping behavior of half-metallic ferromagnet/d-wave superconductor heterostructures

Alexander Buzdin, F. Martinet, Hadi H. Hassan, Jacobo Santamaria, Javier E. Villegas, M. Cabero, Santiago J. Carreira

In c-axis YBCO/LSMO stacks Gilbert damping peaks below Tc from interface Andreev states caused by proximity suppression of the order parameter.

arxiv:2605.12381 v2 · 2026-05-12 · cond-mat.supr-con

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\pithnumber{GLWVQEDXBXZTUXRQMWANI6IYX4}

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Record completeness

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3 Author claim open · sign in to claim

4 Citations open

5 Replications open

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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

For c-axis heterostructures, the pronounced enhancement of α(T) below Tc, peaking at 0.65-0.7Tc before decaying, suggests the dominance of interface-bound Andreev states, arising from a locally suppressed superconducting order parameter due to proximity effects with the half-metallic LSMO.

C2weakest assumption

That the measured changes in Gilbert damping are dominated by the proposed nodal quasiparticles and Andreev states rather than confounding factors such as interface roughness, magnetic impurities, or artifacts in the FMR linewidth extraction.

C3one line summary

In YBCO/LSMO heterostructures, Gilbert damping alpha(T) decreases then rises below Tc for (103) orientation due to nodal quasiparticles, while c-axis shows a peak at 0.65-0.7 Tc attributed to interface-bound Andreev states from suppressed order parameter.

Receipt and verification

First computed	2026-05-25T02:01:23.601732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

32ed5810770df33a5e306580d47918bf3f32599254db3b09170cc3c73f2107d3

Aliases

arxiv: 2605.12381 · arxiv_version: 2605.12381v2 · doi: 10.48550/arxiv.2605.12381 · pith_short_12: GLWVQEDXBXZT · pith_short_16: GLWVQEDXBXZTUXRQ · pith_short_8: GLWVQEDX

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/GLWVQEDXBXZTUXRQMWANI6IYX4 \
  | 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: 32ed5810770df33a5e306580d47918bf3f32599254db3b09170cc3c73f2107d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ff13cad9827ec303a2a711f7539a681622cba7847307c8e739cbd83ebf77ef7",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2026-05-12T16:45:17Z",
    "title_canon_sha256": "81d4416d426590f74287efd2296fc43e4bacd5d3da42063d9e75c3dc73d860b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.12381",
    "kind": "arxiv",
    "version": 2
  }
}