Calculations of the Hyperfine Anomaly in the Lanthanides

Larmor precession of the first 2+ states of 182W and 184W has been observed in an iron alloy containing 5 atom % W. The levels were Coulomb excited with 2.5 MeV protons. The hyperfine energy in 182W is the same as that found by Mössbauer absorption. The variation of the field up to 300 °K is less than 6%. A comparison of g factors measured by the hyperfine field and the external field suggests the existence of a hyperfine anomaly.

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Observation ofμ − spin precession in ferromagnetic Ni and giant hyperfine anomaly

Hyperfine Interactions ◽

10.1007/bf02066130 ◽

1984 ◽

Vol 19 (1-4) ◽

pp. 857-863 ◽

Cited By ~ 4

Author(s):

J. Imazato ◽

K. Nagamine ◽

T. Yamazaki ◽

B. D. Patterson ◽

E. Holzschuh ◽

...

Keyword(s):

Spin Precession ◽

Hyperfine Anomaly

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Hyperfine Anomaly in Eu Isotopes and the Universiability of the Moskowitz–Lombardi Formula

Atoms ◽

10.3390/atoms8010005 ◽

2020 ◽

Vol 8 (1) ◽

pp. 5

Author(s):

Jonas R. Persson

Keyword(s):

Experimental Data ◽

Theoretical Calculations ◽

Magnetic Moments ◽

Hyperfine Anomaly ◽

Nuclear Magnetic Moments ◽

Nuclear Magnetic

A method for determining the hyperfine anomaly, without using the nuclear magnetic moments, is used on a series of unstable isotopes of Eu. The large number of experimental data in Eu makes it possible to extract the hyperfine anomaly for a number of unstable isotopes. Calculations of the Bohr–Weisskopf effect and hence the hyperfine anomaly are performed using the particle-rotor formalism. The result from the calculations and experiments is compared with other theoretical calculations and the empirical Moskowitz–Lombardi formula. The results show that the Moskowitz–Lombardi formula is not universal.

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THE MAGNETIC MOMENT OF INDIUM-115m

Canadian Journal of Physics ◽

10.1139/p62-099 ◽

1962 ◽

Vol 40 (8) ◽

pp. 931-942 ◽

Cited By ~ 2

Author(s):

J. A. Cameron ◽

H. J. King ◽

H. K. Eastwood ◽

R. G. Summers-Gill

Keyword(s):

Magnetic Resonance ◽

Hyperfine Interaction ◽

Hyperfine Structure ◽

Metastable State ◽

Magnetic Moment ◽

Atomic Beam ◽

Electronic States ◽

Nuclear Magnetic Moment ◽

Hyperfine Anomaly ◽

Nuclear Magnetic

The hyperfine structure of the 4.5-hour metastable state of indium-115 has been studied by the method of atomic beam magnetic resonance. The values found for the hyperfine interaction constants are −903.5 ± 1.1 and −95.973 ± 0.010 Mc/sec in the 2P1/2 and 2P3/2 electronic states respectively. Neglecting a possible hyperfine anomaly, these correspond to a nuclear magnetic moment for In115m of −0.24371 ± 0.00005 nuclear magnetons. The construction of the atomic beam apparatus, recently completed at McMaster University, is also described.

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