{
  "annotation_id": "ebc60762-4c73-4ab0-a992-92c8d99b2536",
  "date_created": "2026-02-17T05:53:07.826000Z",
  "date_modified": "2026-02-17T05:53:07.826000Z",
  "file_hash": "10a9865095f41b982ea0cb70dbf7c71f18fa08fca5b954a32773b44e3c6dee04",
  "private": false,
  "record": {
    "abstract": "We systematically investigate the emergence of finite-momentum Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superconductivity in a square lattice Hubbard model with finite filling, driven by either $d_{xy}$-wave or $d_{x^{2}-y^{2}}$-wave altermagnetic order in the presence of on-site $s$-wave attractive interactions. Our study combines mean-field calculation in the superconducting phase with pairing instability analysis of the normal state, incorporating the next-nearest-neighbor hopping in the single-particle dispersion relation. We demonstrate that the two types of altermagnetism have markedly different impacts on the stabilization of FFLO states. Specifically, $d_{xy}$-wave altermagnetism supports FFLO superconductivity over a broad parameter regime at low fillings, whereas $d_{x^{2}-y^{2}}$-wave altermagnetism only induces FFLO pairing in a narrow range at high fillings. Furthermore, we find that the presence of a Van Hove singularity in the density of states tends to suppress FFLO superconductivity. These findings may provide guidance for experimental exploration of altermagnetism-induced FFLO states in real materials with more complex electronic structures.",
    "arxiv_id": "2601.06735",
    "authors": [
      "Xia-Ji Liu",
      "Hui Hu"
    ],
    "categories": [
      "cond-mat.supr-con",
      "cond-mat.str-el"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "Altermagnetism-driven FFLO superconductivity in finite-filling 2D lattices",
    "url": "https://arxiv.org/abs/2601.06735",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "abf407c1-4048-4b9c-8f67-a879ffc980c2",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}