@ARTICLE{,
  author = {Puri, Prateek and Mills, Michael and Schneider, Christian and Simbotin, Ionel and Montgomery, Jr., John A. and C\^{o}t\'{e}, Robin and Suits, Arthur G. and Hudson, Eric R.},
  title = {Synthesis of mixed hypermetallic oxide {BaOCa}\textsuperscript{+} from laser-cooled reagents in an atom-ion hybrid trap},
  journal = {Science},
  year = {2017},
  volume = {357},
  number = {6358},
  pages = {1370--1375},
  month = {},
  url = {http://science.sciencemag.org/content/357/6358/1370},
  doi = {10.1126/science.aan4701},
  abstract = {Hypermetallic alkaline earth ($\text{M}$) oxides of formula $\text{M}\text{O}\text{M}$ have been studied under plasma conditions that preclude insight into their formation mechanism. We present here the application of emerging techniques in ultracold physics to the synthesis of a mixed hypermetallic oxide, $\text{Ba}\text{O}\text{Ca}^{+}$. These methods, augmented by high-level electronic structure calculations, permit detailed investigation of the bonding and structure, as well as the mechanism of its formation via the barrierless reaction of $\text{Ca}$ ($^{3}\text{P}_\text{J}$) with $\text{Ba}\text{O}\text{C}\text{H}_3^{+}$. Further investigations of the reaction kinetics as a function of collision energy over the range 0.005 K to 30 K and of individual $\text{Ca}$ fine-structure levels compare favorably with calculations based on long-range capture theory.}
}