nuclear magnetic moment

physics

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July 1, 2026

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In physics, a nuclear magnetic moment refers to the magnetic dipole moment of an atomic nucleus. Nuclei with an unpaired proton or neutron behave like tiny magnets. The nuclear magnetic moment is a characteristic property of specific nuclei and is measured in units such as the nuclear magneton, which is significantly smaller than the Bohr magneton used for electrons.123

This property is fundamental to understanding nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI). NMR techniques utilize the selective absorption of radio waves by atomic nuclei in a magnetic field to probe molecular structures and provide detailed medical imaging.1

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magnetism
Paramagnetism
The size of the nuclear magnetic moment is only about one-thousandth that of an atom. Per kilogram mole, χ_n is on the order of 10⁻⁸/T; in solid hydrogen this just exceeds the electronic diamagnetism of 1 K.
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The size of the nuclear magnetic moment is only about one-thousandth that of an atom. Per kilogram mole, χ_n is on the order of 10⁻⁸/T; in solid hydrogen this just exceeds the electronic diamagnetism of 1 K.
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nuclear magnetic resonance
…resonance is used to measure nuclear magnetic moments, the characteristic magnetic behaviour of specific nuclei. Because these values are significantly modified by the immediate chemical environment, however, NMR measurements provide information about the molecular structure of various solids and liquids.
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…resonance is used to measure nuclear magnetic moments, the characteristic magnetic behaviour of specific nuclei. Because these values are significantly modified by the immediate chemical environment, however, NMR measurements provide information about the molecular structure of various solids and liquids.
Read More

Isidor Isaac Rabi
…core, a phenomenon known as nuclear magnetic moments. With the application of his magnetic resonance method, several mechanical and magnetic properties, as well as the shape, of an atomic nucleus can be deduced. The precise measurements yielded by this method made possible such subsequent applications as the atomic clock, the…
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…core, a phenomenon known as nuclear magnetic moments. With the application of his magnetic resonance method, several mechanical and magnetic properties, as well as the shape, of an atomic nucleus can be deduced. The precise measurements yielded by this method made possible such subsequent applications as the atomic clock, the…
Read More