Pith Number

pith:KA5RRHVP

pith:2026:KA5RRHVPMLIWYKKPGNDRWDUHK4

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Observation of Switchable Chiral Magnons in an Altermagnet

G{\o}ran J. Nilsen, Hodaka Kikuchi, Igor A. Zaliznyak, Manh D. Le, Mechthild Enderle, Shinichiro Asai, Takatsugu Masuda, Ursula B. Hansen, Vasile O. Garlea, Zheyuan Liu, Zijun Wei

Chiral magnons are directly observed in the altermagnet MnTe and reversibly switched by magnetic fields.

arxiv:2605.14124 v1 · 2026-05-13 · cond-mat.str-el · cond-mat.mtrl-sci

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Record completeness

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2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

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Claims

C1strongest claim

We directly observed chiral magnons in the altermagnetic prototype MnTe using polarized inelastic neutron scattering. Furthermore, the magnon chirality was found to be reversibly switched by magnetic-field control.

C2weakest assumption

The assumption that the observed scattering signals correspond to chiral magnons arising specifically from the non-relativistic exchange mechanism in the altermagnetic state, and that the polarization analysis unambiguously identifies the handedness without significant background or instrumental artifacts.

C3one line summary

Chiral magnons in altermagnetic MnTe are directly observed and their handedness is reversibly switched by magnetic field.

References

65 extracted · 65 resolved · 0 Pith anchors

[1] Polarized incident neu- trons with spins along y probe the NMI term, Ry ∝ I ++ y − I −− y (IN20) or Ry ∝ I +0 y − I − 0 y (HYSPEC) (see SM [41] for detail)

[2] at 20 K. (c) Symmetric neutron structure factor S(Q, E ) measured as the polarization-averaged scattering (I − 0 x + I +0 x )/ 2 and (d) corresponding LSWT calculation with a background component. Das

[3] The quantity (I ++ y − I −− y )/ √I +− z I ++ x switches sign after FC with ± 4

[4] Y. Kajiwara, K. Harii, S. Takahashi, J. Ohe, K. Uchida, M. Mizuguchi, H. Umezawa, H. Kawai, K. Ando, K. Takanashi, S. Maekawa, and E. Saitoh, Transmis- sion of electrical signals by spin-wave intercon 2010

[5] L. J. Cornelissen, J. Liu, R. A. Duine, J. B. Youssef, and B. J. van Wees, Long-distance transport of magnon spin information in a magnetic insulator at room temperature, Nat. Phys. 11, 1022 (2015) 2015

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-17T23:39:11.868272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

503b189eaf62d16c294f33471b0e87572d646d29e9498634adbf92d7e87b2aa9

Aliases

arxiv: 2605.14124 · arxiv_version: 2605.14124v1 · doi: 10.48550/arxiv.2605.14124 · pith_short_12: KA5RRHVPMLIW · pith_short_16: KA5RRHVPMLIWYKKP · pith_short_8: KA5RRHVP

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/KA5RRHVPMLIWYKKPGNDRWDUHK4 \
  | 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: 503b189eaf62d16c294f33471b0e87572d646d29e9498634adbf92d7e87b2aa9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff4372963ec31e81caab3212373c04e08fd1dae60891a97999b2e97aee5f7ab4",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2026-05-13T21:20:10Z",
    "title_canon_sha256": "b2e90ed43f6079093421fe4b5583fa04064b2a73c1dce86b9c023cfca828c1e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.14124",
    "kind": "arxiv",
    "version": 1
  }
}