Evidence for subthermal rotational populations in stored molecular ions through state-dependent dissociative recombination

L. Lammich; D. Strasser; H. Kreckel; M. Lange; H. B. Pedersen; S. Altevogt; V. Andrianarijaona; H. Buhr; O. Heber; P. Witte; D. Schwalm; A. Wolf; D. Zajfman

doi:10.1103/PhysRevLett.91.143201

Evidence for subthermal rotational populations in stored molecular ions through state-dependent dissociative recombination

L. Lammich, D. Strasser, H. Kreckel, M. Lange, H. B. Pedersen, S. Altevogt, V. Andrianarijaona, H. Buhr, O. Heber, P. Witte, D. Schwalm, A. Wolf, D. Zajfman

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Abstract

We demonstrate that the dissociative recombination of [Formula presented] with low-energy electrons depends on the rotational energy of the molecular ion such that highly excited ions have a larger rate coefficient than colder ones. Observations on an ion beam continuously interacting with electrons at low relative velocity indicate that excited rotational levels are preferentially depleted which, in competition with radiative heating due to blackbody radiation, provides an opportunity for controlling the rotational temperature of stored molecules.

Original language	English
Journal	Physical Review Letters
Volume	91
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevLett.91.143201
State	Published - 2003
Externally published	Yes

Bibliographical note

Funding Information:
We thank J. Tennyson for helpful discussions. This work has been funded in part by the German Federal Minister for Education, Science, Research and Technology (BMBF) in the framework of the German-Israeli Pro?>ject Cooperation on Future-Oriented Topics (DIP), by the German Israel Foundation for Scientific Research (GIF) under Contract No. I-707-55.7/2001, and by the European Community within the Research Training Network “Electron Transfer Reactions.” H. B. P. acknowleges support from the European Community program IHP through a Marie Curie fellowship under Contract No. HPMF-CT-2002-01833.

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Lammich, L., Strasser, D., Kreckel, H., Lange, M., Pedersen, H. B., Altevogt, S., Andrianarijaona, V., Buhr, H., Heber, O., Witte, P., Schwalm, D., Wolf, A., & Zajfman, D. (2003). Evidence for subthermal rotational populations in stored molecular ions through state-dependent dissociative recombination. Physical Review Letters, 91(14). https://doi.org/10.1103/PhysRevLett.91.143201

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title = "Evidence for subthermal rotational populations in stored molecular ions through state-dependent dissociative recombination",

abstract = "We demonstrate that the dissociative recombination of [Formula presented] with low-energy electrons depends on the rotational energy of the molecular ion such that highly excited ions have a larger rate coefficient than colder ones. Observations on an ion beam continuously interacting with electrons at low relative velocity indicate that excited rotational levels are preferentially depleted which, in competition with radiative heating due to blackbody radiation, provides an opportunity for controlling the rotational temperature of stored molecules.",

author = "L. Lammich and D. Strasser and H. Kreckel and M. Lange and Pedersen, {H. B.} and S. Altevogt and V. Andrianarijaona and H. Buhr and O. Heber and P. Witte and D. Schwalm and A. Wolf and D. Zajfman",

note = "Funding Information: We thank J. Tennyson for helpful discussions. This work has been funded in part by the German Federal Minister for Education, Science, Research and Technology (BMBF) in the framework of the German-Israeli Pro?>ject Cooperation on Future-Oriented Topics (DIP), by the German Israel Foundation for Scientific Research (GIF) under Contract No. I-707-55.7/2001, and by the European Community within the Research Training Network “Electron Transfer Reactions.” H. B. P. acknowleges support from the European Community program IHP through a Marie Curie fellowship under Contract No. HPMF-CT-2002-01833.",

year = "2003",

doi = "10.1103/PhysRevLett.91.143201",

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volume = "91",

journal = "Physical Review Letters",

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Lammich, L, Strasser, D, Kreckel, H, Lange, M, Pedersen, HB, Altevogt, S, Andrianarijaona, V, Buhr, H, Heber, O, Witte, P, Schwalm, D, Wolf, A & Zajfman, D 2003, 'Evidence for subthermal rotational populations in stored molecular ions through state-dependent dissociative recombination', Physical Review Letters, vol. 91, no. 14. https://doi.org/10.1103/PhysRevLett.91.143201

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T1 - Evidence for subthermal rotational populations in stored molecular ions through state-dependent dissociative recombination

AU - Lammich, L.

AU - Strasser, D.

AU - Kreckel, H.

AU - Lange, M.

AU - Pedersen, H. B.

AU - Altevogt, S.

AU - Andrianarijaona, V.

AU - Buhr, H.

AU - Heber, O.

AU - Witte, P.

AU - Schwalm, D.

AU - Wolf, A.

AU - Zajfman, D.

N1 - Funding Information: We thank J. Tennyson for helpful discussions. This work has been funded in part by the German Federal Minister for Education, Science, Research and Technology (BMBF) in the framework of the German-Israeli Pro?>ject Cooperation on Future-Oriented Topics (DIP), by the German Israel Foundation for Scientific Research (GIF) under Contract No. I-707-55.7/2001, and by the European Community within the Research Training Network “Electron Transfer Reactions.” H. B. P. acknowleges support from the European Community program IHP through a Marie Curie fellowship under Contract No. HPMF-CT-2002-01833.

PY - 2003

Y1 - 2003

N2 - We demonstrate that the dissociative recombination of [Formula presented] with low-energy electrons depends on the rotational energy of the molecular ion such that highly excited ions have a larger rate coefficient than colder ones. Observations on an ion beam continuously interacting with electrons at low relative velocity indicate that excited rotational levels are preferentially depleted which, in competition with radiative heating due to blackbody radiation, provides an opportunity for controlling the rotational temperature of stored molecules.

AB - We demonstrate that the dissociative recombination of [Formula presented] with low-energy electrons depends on the rotational energy of the molecular ion such that highly excited ions have a larger rate coefficient than colder ones. Observations on an ion beam continuously interacting with electrons at low relative velocity indicate that excited rotational levels are preferentially depleted which, in competition with radiative heating due to blackbody radiation, provides an opportunity for controlling the rotational temperature of stored molecules.

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Evidence for subthermal rotational populations in stored molecular ions through state-dependent dissociative recombination

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