Title: Larmor precession
Long Title: IUPAC Gold Book - Larmor precession
DOI: 10.1351/goldbook.08376
Status: current

Definition
Precession of the magnetic moment (\(\boldsymbol{M}\)) of an object at an angular frequency, \(\boldsymbol{\omega}_{\rm{L}}\), about a static magnetic induction (\(\boldsymbol{B_{0}}\)), named after Joseph Larmor.

Note
Larmor precession can be visually compared to the precession of a tilted gyroscope in an external torque-exerting gravitational field.

Related Term
- Precession: https://goldbook.iupac.org//terms/view/08394

Source
- PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 695 (https://doi.org/10.1515/pac-2019-0203)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/08376/html
- json: https://goldbook.iupac.org/terms/view/08376/json
- xml: https://goldbook.iupac.org/terms/view/08376/xml

Citation: Citation: 'Larmor precession' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.08376
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Accessed: 2026-06-21T02:23:04+00:00