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Department of Physics

Staff profile

Publication details for Dr David Carty

Liu, Y., Vashishta, M., Djuricanin, P., Zhou, S., Zhong, W., Mittertreiner, T., Carty, D. & Momose, T. (2017). Magnetic trapping of cold methyl radicals. Physical Review Letters 118(9): 093201.

Author(s) from Durham

Abstract

We have demonstrated that a supersonic beam of methyl radicals (
CH
3
) in the ground rotational state of both para and ortho species has been slowed down to standstill with a magnetic molecular decelerator, and successfully captured spatially in an anti-Helmholtz magnetic trap for
>
1


s
. The trapped
CH
3
radicals have a mean translational temperature of about 200 mK with an estimated density of
>
5.0
×
1
0
7


cm

3
. The methyl radical is an ideal system for the study of cold molecules not only because of its high reactivities at low temperatures, but also because further cooling below 1 mK is plausible via sympathetic cooling with ultracold atoms. The demonstrated trapping capability of methyl radicals opens up various possibilities for realizing ultracold ensembles of molecules towards Bose-Einstein condensation of polyatomic molecules and investigations of reactions governed by quantum statistics.