6533b835fe1ef96bd129ff99

RESEARCH PRODUCT

Precision Measurement of the First Ionization Potential of Nobelium

P. Van DuppenPeter KunzWerner LauthBradley ChealJulia EvenHartmut BackeA. K. MistryAlexander YakushevJadambaa KhuyagbaatarRafael FerrerP. ChhetriC. DroeseN. LecesneO. KalejaS. GötzMark HuyseTh. WaltherZhong ZhangDieter AckermannCh. E. DüllmannF. P. HeßbergerL. LensM. LaatiaouiMichael BlockF. GiacoppoSebastian RaederF. LautenschlägerE. Minaya Ramirez

subject

ENERGIESGeneral Physics and Astronomychemistry.chemical_elementElectron[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciences7. Clean energysymbols.namesakeIonizationEQUAL-TO 1040103 physical sciencesLAWRENCIUMBUFFER GASPhysics::Atomic PhysicsSUPERHEAVY ELEMENTSLASER SPECTROSCOPY010306 general physicsSpectroscopyPhysicsNEUTRAL YTTERBIUM010308 nuclear & particles physicsHEAVIEST ELEMENTSchemistryRydberg formulasymbolsEXCITED-LEVELSNobeliumACTINIDESIonization energyAtomic physicsRelativistic quantum chemistryLawrencium

description

One of the most important atomic properties governing an element's chemical behavior is the energy required to remove its least-bound electron, referred to as the first ionization potential. For the heaviest elements, this fundamental quantity is strongly influenced by relativistic effects which lead to unique chemical properties. Laser spectroscopy on an atom-at-a-time scale was developed and applied to probe the optical spectrum of neutral nobelium near the ionization threshold. The first ionization potential of nobelium is determined here with a very high precision from the convergence of measured Rydberg series to be 6.626 21±0.000 05  eV. This work provides a stringent benchmark for state-of-the-art many-body atomic modeling that considers relativistic and quantum electrodynamic effects and paves the way for high-precision measurements of atomic properties of elements only available from heavy-ion accelerator facilities. ispartof: PHYSICAL REVIEW LETTERS vol:120 issue:26 pages:263003-263003 ispartof: location:United States status: published

10.1103/physrevlett.120.263003https://hal.archives-ouvertes.fr/hal-01839662