Pith Number

pith:SLSNFM6L

pith:2026:SLSNFM6LINUD3Q43SKV3A3NERB

not attested not anchored not stored refs resolved

Room Temperature Anisotropic Photoresponse in Low-Symmetry van der Waals Semiconductor CrPS$_4$

C\'edric A. Cordero-Silis, Daniel Vaquero, Harshan Madeshwaran, Marcos H. D. Guimar\~aes, Teresa L\'opez-Carrasco

CrPS4 shows strong room-temperature linear dichroism reaching 60 in photocurrent with threefold axis dependence.

arxiv:2604.05572 v1 · 2026-04-07 · cond-mat.mes-hall · cond-mat.mtrl-sci

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Claims

C1strongest claim

Linearly polarized reflectivity and scanning photocurrent measurements in the 1.37-2.48 eV range reveal a robust dichroic response. The linear dichroism in reflection RLD reaches ~50, while in photocurrent PCLD it increases to ~60, with a sign reversal of the RLD between 1.6-1.8 eV... a 3-fold enhancement is obtained along the b-axis compared to the a-axis.

C2weakest assumption

The anisotropic responses are attributed to the interaction between polarized light and Cr^{3+} d-orbital T1 and T2 transitions; this attribution is plausible but not directly proven by the measurements alone and could be affected by other contributions such as defects or substrate effects.

C3one line summary

CrPS4 displays room-temperature linear dichroism reaching RLD ~50 and PCLD ~60 with sign reversal and 3-fold axis-dependent photocurrent enhancement arising from its crystal symmetry and Cr3+ orbital transitions.

References

1 extracted · 1 resolved · 0 Pith anchors

[1] Taniguchi, T.; Levitov, L. S.; Jarillo-Herrero, P. Hot Carrier–Assisted Intrinsic Pho- toresponse in Graphene.Science2011,334, 648–652. (S7) Hidding, J.; Cordero-Silis, C. A.; Vaquero, D.; Rompotis, K 2015

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-20T00:00:37.715915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92e4d2b3cb43683dc39b92abb06da48847824316dd7fab44b5a965f0eea81ce7

Aliases

arxiv: 2604.05572 · arxiv_version: 2604.05572v1 · doi: 10.48550/arxiv.2604.05572 · pith_short_12: SLSNFM6LINUD · pith_short_16: SLSNFM6LINUD3Q43 · pith_short_8: SLSNFM6L

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/SLSNFM6LINUD3Q43SKV3A3NERB \
  | 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: 92e4d2b3cb43683dc39b92abb06da48847824316dd7fab44b5a965f0eea81ce7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a918d712ab5a950993f62c2558ee81fb3214ca5f4174deda3ee90c9a419a653",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2026-04-07T08:14:12Z",
    "title_canon_sha256": "d0e8402b4dbc30a7a613ce4d06001ac668b91171a822e00c9eb4565b41d5760b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.05572",
    "kind": "arxiv",
    "version": 1
  }
}