electron spin

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Definition of electron spin in English English dictionary
electron spin resonance: The absorption of radiation by species having unpaired electrons when placed in a magnetic field that is used spectroscopically to detect and study free radicals
electron spin resonance: microwave spectroscopy in which there is resonant absorption of radiation by a paramagnet
electron spin resonance: or electron paramagnetic resonance (EPR) Technique of spectroscopic analysis (see spectroscopy) used to identify paramagnetic substances (see paramagnetism) and investigate the nature of the bonding within molecules by identifying unpaired electrons and their interaction with their immediate surroundings. Unpaired electrons, because of their spin, behave like tiny magnets and can be lined up in an applied magnetic field; energy applied by alternating microwave radiation is absorbed when its frequency coincides with that of precession of the electron magnets in the sample. The graph or spectrum of radiation absorbed as the field changes gives information valuable in chemistry, biology, and medicine

electron spin

Hyphenation

e·lec·tron spin

îlekträn spîn

/əˈlekträn ˈspən/ /ɪˈlɛktrɑːn ˈspɪn/

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