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          Institute: Fritz-Haber-Institut     Collection: Molecular Physics     Display Documents



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ID: 378008.0, Fritz-Haber-Institut / Molecular Physics
Cryogenic buffer-gas loading and magnetic trapping of CrH and MnH molecules
Authors:Stoll, Michael; Bakker, Joost M.; Steimle, Thimothy C.; Meijer, Gerard; Peters, Achim
Language:English
Date of Publication (YYYY-MM-DD):2008-09-18
Title of Journal:Physical Review A
Journal Abbrev.:Phys. Rev. A
Volume:78
Issue / Number:3
Start Page:032707-1
End Page:032707-8
Copyright:2008 The American Physical Society
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:We report on the buffer-gas cooling and trapping of CrH and MnH molecules in a magnetic quadrupole trap with densities on the order of 106 cm−3 at a temperature of 650 mK. Storage times of up to 180 ms have been observed, corresponding to a 20-fold lifetime enhancement with respect to the field-free diffusion through the 3He buffer-gas. Using Monte Carlo trajectory simulations, inelastic molecule-3He collision cross sections of 1.6×10−18 and 3.1×10−17 cm2 are extracted for CrH and MnH, respectively. Furthermore, elastic molecule- 3He collision cross sections of 1.4(±0.5)×10−14 cm2 are determined for both species. We conclude that the confinement time of these molecules in a magnetic trapping field is limited by inelastic collisions with the helium atoms leading to Zeeman relaxation.
External Publication Status:published
Document Type:Article
Communicated by:Gerard Meijer
Affiliations:Fritz-Haber-Institut/Molecular Physics
External Affiliations:Institut für Physik, Humboldt Universität zu Berlin, Hausvogteiplatz 5-7, 10117 Berlin, Germany;
FOM Insitute for Plasma Physics Rijnhuizen, Postbus 1207, 3430 BE Nieuwegein, The Netherlands;
Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, USA
Identifiers:DOI:10.1103/PhysRevA.78.032707
URL:http://link.aps.org/abstract/PRA/v78/e032707
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