{
  "annotation_id": "516b252b-2d8f-4848-b01e-f7133785c922",
  "date_created": "2026-02-17T05:53:20.221000Z",
  "date_modified": "2026-02-17T05:53:20.221000Z",
  "file_hash": "320e322450172724198a28b98ac12bd9028aeab418ccf7991fc4e6c00d638909",
  "private": false,
  "record": {
    "abstract": "We theoretically investigate multiple-$Q$ magnetic states emerging from the interference between finite-$Q$ spiral and staggered spin modulations in a one-dimensional itinerant electron system. The multiple-$Q$ spin textures are characterized by a superposition of symmetry-unrelated ordering wave vectors in the same direction with distinct periodicities rather than rotationally symmetry-related ones. Motivated by recent experimental observations of broken helix magnetic structures in EuIn$_2$As$_2$, we focus on the microscopic interaction conditions in stabilizing such multiple-$Q$ states.We employ two effective spin models: One is the momentum-space-based model, and the other is the real-space-based model, both of which include bilinear and biquadratic easy-plane anisotropic interactions. By analyzing their ground state via simulated annealing, we find that a superposition of a spiral and a staggered modulation yields a robust double-$Q$ magnetic structure. Moreover, we demonstrate that the obtained double-$Q$ spin configuration exhibits an antisymmetric spin-split band structure even without the relativistic Dzyaloshinskii-Moriya interaction, and further reveals asymmetric band modulations when the magnetic field is applied along the out-of-plane direction. Our results provide a theoretical framework for understanding unconventional multiple-$Q$ magnetic textures in one-dimensional systems.",
    "arxiv_id": "2601.09267",
    "authors": [
      "Satoru Hayami",
      "Kazuki Okigami"
    ],
    "categories": [
      "cond-mat.str-el"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "title": "Multiple-$Q$ spin textures induced by spiral--staggered interference in one-dimensional itinerant magnets",
    "url": "https://arxiv.org/abs/2601.09267",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "416010eb-299d-44a1-8c66-7e02d27979be",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}