Magnetic trapping of buffer-gas cooled chromium atoms and prospects for the extension to paramagnetic molecules
Joost M. Bakker, Michael Stoll, Dennis R. Weise, Oliver Vogelsang, Gerard Meijer, Achim Peters
Abstract
We report the successful buffer-gas cooling and magnetic trapping of chromium atoms with densities exceeding 1012 atoms per cm3 at a temperature of 350 mK for the trapped sample. The possibilities to extend the method to buffer-gas cool and magnetically trap molecules are discussed. To minimize the most important loss mechanism in magnetic trapping, molecules with a small spin-spin interaction and a large rotational constant are preferred. Both the CrH (6Σ+ ground state) and MnH (7Σ+) radicals appear to be suitable systems for future experiments.
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