{
  "annotation_id": "abb29068-3258-45aa-b12c-fc8f916be1aa",
  "date_created": "2026-03-02T18:01:25.356000Z",
  "date_modified": "2026-03-02T18:01:25.356000Z",
  "file_hash": "8d2a7f3df5f1040c1d5c44153baa09572d80f8d25802c3e361c5b6d394f518c7",
  "private": false,
  "record": {
    "abstract": "The electronic structure of the ground and some excited states of neutral\natoms with the nuclear charge numbers $1\\leq Z \\leq 10$ and their single\npositive ions are investigated by means of our 2D mesh Hartree-Fock method for\nstrong magnetic fields $0.5\\leq \\gamma \\leq 10000$. For $\\gamma=10000$ the\nground state configurations of all the atoms and ions considered are given by\nfully spin-polarized configurations of single-electron orbitals with magnetic\nquantum numbers ranging from m=0 to m=-N+1 where N is the number of the\nelectrons. Focusing on the fully spin polarized situation we provide critical\nvalues of the magnetic field strength for which crossovers with respect to the\nspatial symmetries of the ground state take place. It is found that the neutral\natoms and singly charged positive ions with $2\\leq Z \\leq 5$ have one fully\nspin-polarized ground state configuration whereas for $6\\leq Z \\leq 10$ one\nintermediate fully spin-polarized configuration with an orbital of 2p_0 type\noccurs.",
    "arxiv_id": "physics/9910017",
    "authors": [
      "M. V. Ivanov",
      "P. Schmelcher"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.61.022505",
    "title": "Ground states of the atoms H, He,...., Ne and their singly positive ions   in strong magnetic fields: The high field regime",
    "url": "https://arxiv.org/abs/physics/9910017"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0e1bec85-1865-4ef7-8cae-d774897ec305",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}