Pith Number

pith:BTB2RCW5

pith:2026:BTB2RCW56V3VKMQ3GR4NSIQ34S

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Interface controlled spin filtering and nonreciprocal transport in Altermagnet/Ising superconductor junctions

Arindam Boruah, Prasanta Kumar Saikia, Saumen Acharjee

Altermagnet/Ising superconductor junctions with spin-active interfaces produce spin filtering up to 86 percent efficiency and nonreciprocal transport.

arxiv:2605.13317 v1 · 2026-05-13 · cond-mat.supr-con · cond-mat.mes-hall

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Claims

C1strongest claim

the spin polarization and spin-filter efficiency exhibit nonmonotonic dependence on system parameters, reaching values up to ∼86%, with characteristic angular modulation determined by the AM spin texture. Strong spin mixing produces asymmetric conductance patterns indicating nonreciprocal transport.

C2weakest assumption

The modified Bogoliubov-de Gennes scattering formalism with chosen spin-mixing regimes and interface magnetization accurately captures all relevant physics without additional disorder, finite-temperature, or multi-band effects beyond the stated single-band to double-band regimes.

C3one line summary

Altermagnet/Ising superconductor junctions with spin-active interfaces produce anisotropic conductance, spin filtering up to 86%, and nonreciprocal transport controlled by interface spin mixing and altermagnet spin texture.

References

63 extracted · 63 resolved · 0 Pith anchors

[1] The corresponding energy band structure of the AM is depicted in Fig

[2] I. ˇZuti´c, J. Fabian, and S. D. Sarma, Spintronics: Fundamentals and applications, Rev. Mod. Phys.76, 323 (2004) 2004

[3] A. I. Buzdin, Proximity effects in superconductor-ferromagnet heterostructures, Rev. Mod. Phys.77, 935 (2005) 2005

[4] F. S. Bergeret, A. F. V olkov, and K. B. Efetov, Odd triplet superconductivity and related phenomena in superconductor- ferromagnet structures, Rev. Mod. Phys.77, 1321 (2005) 2005

[5] S. S. Saxena, P. Agarwal, K. Ahilan, F. M. Grosche, R. K. W. Haselwimmer, M. J. Steiner, E. Pugh, I. R. Walker, S. R. Julian, P. Monthouxet al., Superconductivity on the bor- der of itinerant-electron 2000

Receipt and verification

First computed	2026-05-18T02:44:48.755586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cc3a88addf57755321b3478d9221be4b0a4e939be80e6488ca4710fafdfa5ce

Aliases

arxiv: 2605.13317 · arxiv_version: 2605.13317v1 · doi: 10.48550/arxiv.2605.13317 · pith_short_12: BTB2RCW56V3V · pith_short_16: BTB2RCW56V3VKMQ3 · pith_short_8: BTB2RCW5

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/BTB2RCW56V3VKMQ3GR4NSIQ34S \
  | 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: 0cc3a88addf57755321b3478d9221be4b0a4e939be80e6488ca4710fafdfa5ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce1308c6a054f86e6b6bf6bd73b294acb097db6ed7535c0e3c9e985006d0fee3",
    "cross_cats_sorted": [
      "cond-mat.mes-hall"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2026-05-13T10:29:56Z",
    "title_canon_sha256": "d97773f4c60215343853bb573a2a77dac708cef6ab3a8d2fcccfd29aa2124e6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.13317",
    "kind": "arxiv",
    "version": 1
  }
}