scholarly journals Calculation of the Differential Breit–Rosenthal Effect in the 6s6p 3P1,2 States of Hg

Atoms ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 86
Author(s):  
Tarjei Heggset ◽  
Jonas R. Persson
Keyword(s):  
Hyperfine Structure ◽  
Magnetic Dipole ◽  
Dipole Moments ◽  
Hyperfine Anomaly ◽  
Unstable Nuclei ◽  
Experimental Values ◽  
Nuclear Magnetic ◽  
Long Chains

Studies of the hyperfine anomaly has found a renewed interest with the recent development of techniques to study the properties of long chains of unstable nuclei. By using the hyperfine structure for determining the nuclear magnetic dipole moments, the hyperfine anomaly puts a limit to the accuracy. In this paper, the differential Breit–Rosenthal effect is calculated for the 6s6p3P1,2 states in 199Hg as a function of the change in nuclear radii, using the MCDHF code, GRASP2018. The differential Breit–Rosenthal effect was found to be of the order of 0.1%fm−2, in most cases much less than the Bohr-Weisskopf effect. The results also indicate that large calculations might not be necessary, with the present accuracy of the experimental values for the hyperfine anomaly.

Ground state hyperfine structure and nuclear magnetic dipole moments of177Hf and179Hf

1973 ◽  
Vol 260 (2) ◽  
pp. 157-164 ◽  
Author(s):  
S. Büttgenbach ◽  
M. Herschel ◽  
G. Meisel ◽  
E. Schrödl ◽  
W. Witte
Keyword(s):  
Hyperfine Structure ◽  
Magnetic Dipole ◽  
Ground State ◽  
Dipole Moments ◽  
Nuclear Magnetic

The nuclear magnetic dipole moments of the stable isotopes of europium and the hyperfine structure anomaly

1960 ◽  
Vol 257 (1289) ◽  
pp. 277-282 ◽  
Keyword(s):  
Stable Isotopes ◽  
Dipole Moment ◽  
Hyperfine Structure ◽  
Magnetic Dipole ◽  
Atomic Beam ◽  
Magnetic Dipole Moment ◽  
Dipole Moments ◽  
New Method ◽  
Hyperfine Structures ◽  
Nuclear Magnetic

The nuclear magnetic dipole moment of 151 Eu and the ratio of the moments of 151 Eu and 153 Eu have been measured by the new method of resonance in three loops in a short atomic beam. The results are: μ ( 151 Eu) = 3·419 ± 0·004 n.m.; μ ( 151 Eu) / μ ( 153 Eu)= 2·2686 ± 0·0015. The result, taken together with the ratio of the hyperfine structures of europium, gives a hyperfine structure anomaly of (1·0 + 0·23)%. A theoretical value of the anomaly is estimated.

scholarly journals Hyperfine Anomalies in Gd and Nd

Atoms ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 63 ◽  
Author(s):  
Jonas Persson
Keyword(s):  
Dipole Moment ◽  
Hyperfine Structure ◽  
Magnetic Dipole ◽  
Magnetic Dipole Moment ◽  
Hyperfine Anomaly ◽  
Structure Constants ◽  
Nuclear Magnetic

The hyperfine anomalies in Gd and Nd have been extracted from experimental hyperfine structure constants. In addition to the values of the hyperfine anomaly, new improved values of the nuclear magnetic dipole moment ratios are derived.

Relativistic effects in many electron hyperfine structure III. Relativistic dipole and quadrupole interaction in europium and remeasurement of the nuclear magnetic dipole moments of 151 Eu and 153 Eu

1965 ◽  
Vol 289 (1416) ◽  
pp. 114-121 ◽  
Keyword(s):  
Hyperfine Structure ◽  
Magnetic Dipole ◽  
Quadrupole Interaction ◽  
Dipole Moments ◽  
Relativistic Effects ◽  
Dipole Interaction ◽  
Triple Resonance ◽  
Limits Of Error ◽  
Good Agreement ◽  
Nuclear Magnetic

The nuclear magnetic dipole moments of 151 Eu and 153 Eu have been re-measured. The revised values (corrected for diamagnetic shielding) are: μ( 151 Eu) = 3.4630 ± 0-0006 n.m., μ( 153 Eu) = 1.5292 ± 0-0008 n.m. The ratio of the moments is μ( 151 Eu)/μ( 153 Eu) = 2.26505 ±0.00042. These results were obtained by the method of triple resonance in an atomic beam. The hyperfine structure anomaly in the ground state of the europium atom is zero within limits of error. In this special circumstance it is shown that part of the nuclear magnetic dipole interaction is explained by relativistic effects. The quadrupole interaction is treated by the same theory, and good agreement with experiment is obtained, but high precision is not claimed for the theoretical result. This theory is based on a new relativistic calculation involving the use of an effective operator acting between non-relativistic states.

NMR absolute shielding scales and nuclear magnetic dipole moments of transition metal nuclei

2020 ◽  
Vol 22 (13) ◽  
pp. 7065-7076 ◽  
Author(s):  
Andrej Antušek ◽  
Michal Repisky
Keyword(s):  
Transition Metal ◽  
Ab Initio ◽  
Systematic Error ◽  
Magnetic Dipole ◽  
Dipole Moments ◽  
Shielding Constants ◽  
Nuclear Magnetic

This work reports new, accurate nuclear magnetic dipole moments for transition metal nuclei where the long-standing systematic error due to obsolete diamagnetic correction has been eliminated by ab initio calculations of NMR shielding constants.

THE MAGNETIC MOMENT OF INDIUM-115m

1962 ◽  
Vol 40 (8) ◽  
pp. 931-942 ◽  
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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