Free induction decay

{
  "id": "MLC-T-CHM-004653",
  "term": "Free induction decay",
  "field": "Chemistry",
  "definition": "The transient nuclear magnetic resonance (NMR) signal observed after a radiofrequency pulse excites the nuclear spins in a sample. This signal decays over time due to relaxation processes and dephasing of the spins. The Fourier transform of the free induction decay yields the NMR spectrum, providing information about molecular structure.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "Larmor angular frequency",
    "net dephasing time",
    "nuclear magnetic resonance spectroscopy"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 659 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/free-induction-decay/"
}