Slichter, Charles P. Department of Physics, University of Illinois, Urbana, Illinois.
Last reviewed:January 2020
- Nuclear magnetic resonance (NMR)
- Magnetic resonance imagining (MRI)
- Electron-nuclear double resonance (ENDOR)
- Paramagnetic resonance
- Ferromagnetic resonance
- Antiferromagnetic resonance
- Ferrimagnetic resonance
- Related Primary Literature
- Additional Reading
A phenomenon exhibited by the magnetic spin systems of certain atoms whereby the spin systems absorb energy at specific (resonant) frequencies when subjected to alternating magnetic fields. The magnetic fields must alternate in synchronism with natural frequencies of the magnetic system. In most cases the natural frequency is that of precession of the bulk magnetic moment M of constituent atoms or nuclei about some magnetic field H. Because the natural frequencies are highly specific as to their origin (nuclear magnetism, electron spin magnetism, and so on), the resonant method makes possible the selective study of particular features of interest. For example, it is possible to study weak nuclear magnetism unmasked by the much larger electronic paramagnetism or diamagnetism which usually accompanies it.
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