Pith Number

pith:XIWOYPP3

pith:2026:XIWOYPP3GC6YTDSBEEPWV6EA4I

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Geometry-Driven Nonlinear Orbital Magnetoelectric Effect

Jian Wang, Jinxiong Jia, Zhenhua Qiao

A nonlinear orbital magnetoelectric effect generates orbital magnetization quadratically in centrosymmetric materials.

arxiv:2605.17462 v1 · 2026-05-17 · cond-mat.mes-hall

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Record completeness

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4 Citations open

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Claims

C1strongest claim

We propose a nonlinear orbital magnetoelectric effect, which generates orbital magnetization quadratically in centrosymmetric materials where the linear orbital magnetoelectric effect is strictly forbidden.

C2weakest assumption

The extended semiclassical formulation remains valid and gauge-invariant for the nonlinear orbital response, allowing clean separation of intrinsic and extrinsic contributions that depend differently on relaxation time.

C3one line summary

A nonlinear orbital magnetoelectric effect is derived for centrosymmetric materials via extended semiclassical theory, separating intrinsic and extrinsic parts with distinct relaxation-time scalings and reduced symmetry constraints in 2D.

References

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[1] (6) We further deﬁne ¯gab nm = − iLa nmrb mn/ǫ nm = ¯Gab nm − i ¯Ω ab nm/ 2 and ¯Ccab nm = − Re [ iLc nmDa mnrb mn ] /ǫ nm

[2] yields the extrinsic NOME contribution, χ (1) c;ab = χ (1,od ) c;ab + χ (1,ic ) c;ab + χ (1,d ) c;ab , with its components deﬁned as χ (1,od ) c;ab = − τ ∑ nm fn∂ a ¯Ω cb nm, (7) χ (1,ic ) c;ab = − τ

[3] Remarkably, its intrinsic contribution can be both T -even and P-even contribution, and may there- fore remain ﬁnite even in systems without SOC

[4] B. A. Bernevig, T. L. Hughes, and S. C. Zhang, Orbi- tronics: The Intrinsic Orbital Current in p-Doped Sili- con, Phys. Rev. Lett. 95, 066601 (2005) 2005

[5] D. Go, D. Jo, C. Kim and H. W. Lee, Intrinsic Spin and Orbital Hall Eﬀects from Orbital Texture, Phys. Rev. Lett. 121, 086602 (2018) 2018

Formal links

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Receipt and verification

First computed	2026-05-20T00:04:40.255403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba2cec3dfb30bd898e41211f6af880e20ffae3ea6aee3b6836621e51d6a5635a

Aliases

arxiv: 2605.17462 · arxiv_version: 2605.17462v1 · doi: 10.48550/arxiv.2605.17462 · pith_short_12: XIWOYPP3GC6Y · pith_short_16: XIWOYPP3GC6YTDSB · pith_short_8: XIWOYPP3

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curl -sH 'Accept: application/ld+json' https://pith.science/pith/XIWOYPP3GC6YTDSBEEPWV6EA4I \
  | 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: ba2cec3dfb30bd898e41211f6af880e20ffae3ea6aee3b6836621e51d6a5635a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e7b2b9d4744720f88b180aabc2e002dcdb590b42220f04cffac8020830ec121",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2026-05-17T14:04:40Z",
    "title_canon_sha256": "3aa4ff647389177878f78385adfa9bc8303173421345ed7e1b6cf46f84106439"
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