spin-Peierls transition

{
  "id": "MLC-T-CHM-011222",
  "term": "spin-Peierls transition",
  "field": "Chemistry",
  "definition": "A phase transition occurring in one-dimensional antiferromagnetic spin chains, where the system undergoes a dimerization of the lattice. This dimerization leads to the formation of spin singlets and a gap in the magnetic excitation spectrum. The transition is driven by the coupling between the spin system and the lattice phonons.",
  "subject": "Inorganic Chemistry",
  "see_also": [
    "dimerization"
  ],
  "references": [
    "PAC, 1994, 66, 577. 'Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)' on page 591 (https://doi.org/10.1351/pac199466030577)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/spin-peierls-transition/"
}