Pith Number

pith:QLYYLM5W

pith:2026:QLYYLM5W33DSO4XZHWLAVAZGMU

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I-V characteristics of SNS junctions with a multivalley normal region

Anton Andreev, Boris Spivak, Liam Bonds, Shiang-Bin Chiu

SNS junctions with a multivalley normal region show nonmonotonic I-V characteristics with two current peaks.

arxiv:2605.17667 v1 · 2026-05-17 · cond-mat.supr-con · cond-mat.mes-hall

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Claims

C1strongest claim

At constant voltage bias V, the current I(V) is nonmonotonic; it exhibits two peaks of similar magnitude I_max,1 ~ I_max,2 at V1 ~ ħ(eτ_in)^{-1} and V2 ~ ħ(eτ_v)^{-1}, which may greatly exceed the critical current Ic(T).

C2weakest assumption

The inter-valley relaxation time τ_v and the inelastic relaxation time τ_in may be significantly longer than the intra-valley momentum relaxation time τ, creating a separation of time scales that controls the junction kinetics.

C3one line summary

In multivalley SNS junctions, constant-voltage I-V curves show two peaks at voltages set by inelastic and inter-valley relaxation times that can exceed Ic(T), while constant-current bias yields nonlinear resistance orders of magnitude below the normal-state value.

References

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[1] Voltage bias It is shown below that the I-V characteristic of voltage- biased junctions turns out to be nonmonotonic, with two pronounced peaks of similar heightI max,1 ∼I max,2, as illustrated in Fig

[2] (28) that only the quasiparticles in energy levels within a narrow windowϵ∼E T ≪T contribute to the current (below, we refer to them as “active” levels)

[3] High bias regime It is clear from Fig. 3 that even in the high bias regime, where the inelastic and inter-valley relaxation become ineffective, the nonequilibrium population of active quasiparticle le

[4] E. I. Blount, Phys. Rev.114, 418 (1959) 1959

[5] E. Adler, IBM J. Res. Dev.8, 430 (1964) 1964

Formal links

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Receipt and verification

First computed	2026-05-20T00:04:51.746139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82f185b3b6dec72772f93d960a8326650e02ef44c5c2f1a6c5db1b79e0c6601f

Aliases

arxiv: 2605.17667 · arxiv_version: 2605.17667v1 · doi: 10.48550/arxiv.2605.17667 · pith_short_12: QLYYLM5W33DS · pith_short_16: QLYYLM5W33DSO4XZ · pith_short_8: QLYYLM5W

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QLYYLM5W33DSO4XZHWLAVAZGMU \
  | 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: 82f185b3b6dec72772f93d960a8326650e02ef44c5c2f1a6c5db1b79e0c6601f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "463fdcf6b04f1c6675fdff2e06654686368e93e0ee20fb9dc4a6f0e5edaad9b7",
    "cross_cats_sorted": [
      "cond-mat.mes-hall"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2026-05-17T21:57:08Z",
    "title_canon_sha256": "3c1c75f763ead3d21f9a4699184dddaff2295e3d3051ceec9971fb0349e3af24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.17667",
    "kind": "arxiv",
    "version": 1
  }
}