Mainz 2026 – scientific programme
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MO: Fachverband Molekülphysik
MO 4: Novel Experimental Approaches and Novel Theoretical and Computational Approaches
MO 4.7: Talk
Monday, March 2, 2026, 18:45–19:00, P 105
Facile production of multiply-charged actinide molecules — •J. Stricker1,2,3, K. Gaul1,2, P. Fischer4, D. Renisch1,2, D. Budker1,2,3, F. Schmidt-Kaler1,2,3, L. von der Wense1, L. Schweikhard4, and Ch. E. Düllmann1,2,3,5 — 1JGU Mainz — 2HI Mainz — 3PRISMA+ Mainz — 4Universität Greifswald — 5GSI Darmstadt
We present a new method for producing multiply-charged actinide molecules. Using pulsed laser ablation of micro-targets, we generate ThFxn+ (x = 0-3, n ≤ 3) from ThF4 salt, and UOn+ from metallic uranium up to UO4+. The production of ThF2+ and UO3+ is particularly relevant for searches for nuclear Schiff moments, while UO4+ approaches the limit of chemical stability. Relativistic density-functional calculations validate the observed charge states and molecular structures. The technique provides access to a broad range of multiply-charged radioactive molecules for a variety of future precision experiments.
Keywords: Multipy-charged-molecules; Actinides; Time-of-Flight; Laser-ablation; Schiff-moments