electron spin resonance
- the flipping back and forth between two spin directions of electrons in a magnetic field when electromagnetic radiation of the proper frequency is applied. Abbreviation: ESR
Origin of electron spin resonance
First recorded in 1950–55
Also called electron paramagnetic resonance, spin resonance.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
electron spin resonance
- a technique for investigating paramagnetic substances by subjecting them to high-frequency radiation in a strong magnetic field. Changes in the spin of unpaired electrons cause radiation to be absorbed at certain frequenciesAbbreviation: ESR See also nuclear magnetic resonance
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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electron spin resonance
- A spectrometric method, based on measurement of the spins of unpaired electrons in a magnetic field, for detecting and estimating free radicals in organic reactions.
The American Heritage® Stedman's Medical Dictionary
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