Distribution of nuclear magnetization in mercury isotopes

Moskowitz, P. A.; Lombardi, M.

doi:10.1016/0370-2693(73)90132-9

Cited by 74 publications

(51 citation statements)

References 8 publications

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“…For the isotopes with a larger nuclear spin, larger values are observed but again isotopes having identical nuclear spin and parity, e.g. Since we have values for the hfs anomaly of several different nuclear states, it is worthwhile to check whether the Moskowitz-Lombardi rule that has been established in the lead region [2,3], works also well in the tin region. For Cd, all isotopes for which the hyperfine anomaly can be determined are associated with s1 /2 , d5 /2 and h11 /2 shellmodel states and have nuclear spin I = ℓ + 1 /2.…”

Section: Hyperfine Structure Anomaly and The Moskowitz-lombardi Rulementioning

confidence: 93%

“…with e being the charge of the electron, and where the (second-rank) operator T (2) acts upon the electronic coordinates of the wave functions. It is this operator in the theory of hfs [32,33] that describes the electric field gradient, EFG, at the site of the nucleus Figure 5 displays the calculated values of the EFG for the 5s5p 3 P 2 excited level of neutral cadmium for different computational models at various degrees of complexity.…”

Section: Efg Theorymentioning

confidence: 99%

“…This is the reason why systematic data are available only in a few cases. One of the prominent examples is the series of mercury isotopes between 193 Hg and 203 Hg for which Moskowitz and Lombardi [2] realized that the hfs anomaly follows a surprisingly simple rule. Plotted against the difference of the inverse magnetic moments, the anomalies…”

Section: Introductionmentioning

confidence: 99%

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Collinear laser spectroscopy of atomic cadmium

et al. 2015

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Abstract. Hyperfine structure A and B factors of the atomic 5s 5p 3 P2 → 5s 6s 3 S1 transition are determined from collinear laser spectroscopy data of 107−123 Cd and 111m−123m Cd. Nuclear magnetic moments and electric quadrupole moments are extracted using reference dipole moments and calculated electric field gradients, respectively. The hyperfine structure anomaly for isotopes with s1 /2 and d5 /2 nuclear ground states and isomeric h11 /2 states is evaluated and a linear relationship is observed for all nuclear states except s1 /2 . This corresponds to the Moskowitz-Lombardi rule that was established in the mercury region of the nuclear chart but in the case of cadmium the slope is distinctively smaller than for mercury. In total four atomic and ionic levels were analyzed and all of them exhibit a similar behaviour. The electric field gradient for the atomic 5s 5p 3 P2 level is derived from multi-configuration Dirac-Hartree-Fock calculations in order to evaluate the spectroscopic nuclear quadrupole moments. The results are consistent with those obtained in an ionic transition and based on a similar calculation.

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Section: Hyperfine Structure Anomaly and The Moskowitz-lombardi Rulementioning

confidence: 93%

Section: Efg Theorymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Collinear laser spectroscopy of atomic cadmium

et al. 2015

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“…In Ref. [26] the HFA for the Tl isotopes was estimated by the application of the empirical Moskowitz-Lombardi rule [27]. However, it was shown recently [28] that this rule is not universal and should be applied to the HFA estimation with caution.…”

Section: A Spins and Magnetic Momentsmentioning

confidence: 99%

Changes in mean-squared charge radii and magnetic moments of Tl179–184 measured by in-source laser spectroscopy

Barzakh¹,

Andreyev²,

Cocolios³

et al. 2017

Phys. Rev. C

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Hyperfine structure and isotope shifts have been measured for the ground and isomeric states in the neutrondeficient isotopes [179][180][181][182][183][184] Tl using the 276.9-nm transition. The experiment has been performed at the CERNIsotope Separator On-Line facility using the in-source resonance-ionization laser spectroscopy technique. Spins for the ground states in 179,181,183 Tl have been determined as I = 1/2. Magnetic moments and changes in the nuclear mean-square charge radii have been deduced. By applying the additivity relation for magnetic moments of the odd-odd Tl nuclei the leading configuration assignments were confirmed. A deviation of magnetic moments for isomeric states in 182,184 Tl from the trend of the heavier Tl nuclei is observed. The charge radii of the ground states of the isotopes [179][180][181][182][183][184] Tl follow the trend for isotonic (spherical) lead nuclei. The noticeable difference in charge radii for ground and isomeric states of 183,184 Tl has been observed, suggesting a larger deformation for the intruder-based 9/2 − and 10 − states compared to the ground states. An unexpected growth of the isomer shift for 183 Tl has been found.

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“…At the beginning of the experiment the y-count rate of the 164 keV and the 197 keV transition was 3 s-1 and 8 s-1, respectively. 145 keV: e= 0.000 (12) 172 keV: e= +0.001(3) 203 keV: e = -0.001 (1) 375 keV: e= 0.000 (4) In the framework of the two-site model described before, (only) a fraction f= 0.31 (3) of the Xe nuclei experiences the full hyperfine splitting (see below). In this approach 69(3)% of the Xe nuclei occupy lattice sites in Fe for which the orienting hyperfine splitting is negligibly small.…”

Section: Methodsmentioning

confidence: 98%