magnetonn.

1911 Sci. Abstr. A. 14 191 The author [sc. P. Weiss] is led to postulate the existence of a common constituent of magnetic materials—the elementary magnets of [sic] which he terms magnétons, and which are to be found in the atoms of all magnetic substances.

1911 Sci. Abstr. A. 14 243 (heading) Size of the magneton deduced from the coefficients of magnetisation of solutions of iron salts.

1915 Proc. Physical Soc. 27 430 A further comparison with experimental determinations is rendered possible by assuming that the magnetic moment of an electron revolving with the unit of angular momentum is equivalent to 5 magnetons.

1917 R. W. Hutchinson Adv. Textbk. Magn. & Electr. II. 313 This fundamental magnet he calls the ‘magneton’. Calculation shows that iron, nickel and magnetite contain 11, 3, and 7 of these magnetons per molecule respectively.

1919 Nature 6 Nov. 227/2 The suggestion, first proposed by Weiss, that there exists a natural unit of magnetism called the magneton, analogous in some respects to the atom of electricity, still lacks definite proof.

1935 Physical Rev. 47 801/1 We obtain a value of 3·14 nuclear magnetons for the magnetic moment of the Li⁷ nucleus.

1962 H. D. Bush Atomic & Nucl. Physics iii. 60 For all nuclei, including the proton the magnitude of the moment is not an integral multiple of the nuclear magneton.

1973 Nature 26 Jan. 239/1 Quantum fluctuations of the electromagnetic field close to the particle [sc. a free electron] imply an apparent increase in its magnetic moment beyond the value of one Bohr magneton implied by the unmodified Dirac theory.

1984 N. N. Greenwood & A. Earnshaw Chem. of Elements (1986) xiv. 704 The nuclear magnetic moment is −1.8930 nuclear magnetons.