Measurement of the first ionization potential of lawrencium, element 103

Sato, Tetsuya K.; Asai, Mitsuteru; Borschevsky, Anastasia; Stora, T.; Sato, N.; Kaneya, Y.; Tsukada, K.; Düllmann, Ch. E.; Eberhardt, Κ.; Eliav, Ephraim; Ichikawa, S.; Kaldor, Uzi; Kratz, Jens Volker; Miyashita, Sunao; Nagame, Y.; Ooe, Kazuhiro; Osa, A.; Renisch, Dennis; Runke, J.; Schädel, M.; Thörle-Pospiech, P.; Toyoshima, Atsushi; Trautmann, Ν.

doi:10.1038/nature14342

Cited by 144 publications

(145 citation statements)

References 31 publications

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“…Theoretical models predict a 7p 1/2 ground state, but the 6d state is rather close in energy [4]. Recent experiments performed in Tokai, Japan used a surface ionization technique to determine the first ionization potential of Lr [39]. Their result agrees with the theoretical prediction well and confirms that Lr terminates the actinide series.…”

Section: Epj Web Of Conferences 163 00006 (2017) Doi: 101051/epjconsupporting

confidence: 78%

Laser spectroscopy studies on nobelium

Block

2017

EPJ Web Conf.

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Abstract. Laser spectroscopy of the heaviest elements provides high-precision data on their atomic and nuclear properties. For example, atomic level energies and ionization potentials allow us to probe the influence of relativistic effects on their atomic structure and to benchmark state-of-the-art atomic structure calculations. In addition, it offers an alternative route to determine nuclear properties like spins, magnetic moments and quadrupole moments in a nuclear model-independent way. Recently, a sensitive method based on resonant laser ionization has been applied to nobelium isotopes around N = 152 at GSI Darmstadt. In pioneering experiments, several atomic states have been identified extending the reach of laser spectroscopy beyond fermium. In this contribution, the main achievements and future perspectives are briefly summarized.

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Section: Epj Web Of Conferences 163 00006 (2017) Doi: 101051/epjconsupporting

confidence: 78%

Laser spectroscopy studies on nobelium

Block

2017

EPJ Web Conf.

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“…However, very little experimental data is available on atomic properties such as ionization potential, excitation energies, etc. The most recent achievement of this kind is measurement of ionization potential of lawrencium (Z = 103) [8] and nobelium (Z = 102) [9,10]. The energy of the 7s 2 1 S 0 − 7s7p 1 P 1 and the hyperfine structure of the 1 P 1 state of 253 No has been also measured [9].…”

Section: Introductionmentioning

confidence: 99%

Ionization potentials and polarizabilities of superheavy elements from Db to Cn(Z=105–112)

Dzuba

2016

Phys. Rev. A

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Relativistic Hartree-Fock and random phase approximation methods for open shells are used to calculate ionization potentials and static scalar polarizabilities of eight superheavy elements with open 6d-shell, which include Db, Sg, Bh, Hs, Mt, Ds, Rg and Cn (Z=105 to 112). Inter-electron correlations are taken into account with the use of the semi-empirical polarization potential. Its parameters are chosen to fit the known ionization potentials of lighter atoms. Calculations for lighter atoms are also used to illustrate the accuracy of the approach.

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“…There are a number of recent works where QED radiative corrections have been included into the many-body problem using one or other of these radiative potentials (e.g., [18][19][20][21]). However, there has as yet been no indepth study of the interplay between radiative corrections and many-body effects or of the breakdown of different terms.…”

Section: Introductionmentioning

confidence: 99%

QED radiative corrections and many-body effects in atoms: vacuum polarization and binding energy shifts in alkali metals

Ginges

Berengut

2016

J. Phys. B: At. Mol. Opt. Phys.

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We calculate vacuum polarization corrections to the binding energies in neutral alkali atoms Na through to the superheavy element E119. We employ the relativistic Hartree-Fock method to demonstrate the importance of relaxation of the electronic core and the correlation potential method to study the effects of second and higher orders of perturbation theory. These many-body effects are sizeable for all orbitals, though particularly important for orbitals with angular momentum quantum number l > 0. The orders of magnitude enhancement for d waves produces shifts that, for Rb and the heavier elements, are larger than those for p waves and only an order of magnitude smaller than the s-wave shifts. The many-body enhancement mechanisms that operate for vacuum polarization apply also to the larger self-energy corrections.

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Measurement of the first ionization potential of lawrencium, element 103

Cited by 144 publications

References 31 publications

Laser spectroscopy studies on nobelium

Laser spectroscopy studies on nobelium

Ionization potentials and polarizabilities of superheavy elements from Db to Cn(Z=105–112)

QED radiative corrections and many-body effects in atoms: vacuum polarization and binding energy shifts in alkali metals

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