Abstract
The hyperfine structure of t e 4f/sup 13/6s/sup 2/ /sup 2/F/sub 7/2/ ground sta te of Tm/sup 169/ has been studied by means of the atomic-beam magnetic-resonance method. By the use of multiple transitions, measurements were made from which the nuclear magnetic moment could be extracted without the use of approximate wave functions. computer analysis of the experimental data gives the following results: A = -374.1374 plus or minus 0.0016 Mc/sec; g/sub j/ =-1.141l9 plus or minus 0.00004; g/sub I'/= -(2.478 plus or minus 0.032) x 10/sup -4/ (with mu /sub I/ expressed in Bohr magnetons); whence mu /sub I/ = -(0.229 plus or minus 0.003) nm (corrected for the diamagnetic shielding effect of the electrons). (auth)
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