Stopping molecular rotation using coherent ultra-low-energy magnetic manipulations

Chadwick, Helen; Somers, Mark F.; Stewart, Aisling; Alkoby, Yosef; Carter, Thomas J.D.; Butkovicova, Dagmar; Alexandrowicz, Gil

doi:10.1038/s41467-022-29830-3

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Stopping molecular rotation using coherent ultra-low-energy magnetic manipulations

Helen Chadwick

, Mark F. Somers, Aisling Stewart, Yosef Alkoby, Thomas J.D. Carter, Dagmar Butkovicova

, Gil Alexandrowicz

Nature Communications, Volume: 13

Swansea University Authors: Helen Chadwick , Aisling Stewart, Yosef Alkoby, Dagmar Butkovicova , Gil Alexandrowicz

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DOI (Published version): 10.1038/s41467-022-29830-3

Abstract

Rotational motion lies at the heart of intermolecular, molecule-surface chemistry and coldmolecule science, motivating the development of methods to excite and de-excite rotations.Existing schemes involve perturbing the molecules with photons or electrons which supply orremove energy comparable to t...

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Published in:	Nature Communications
ISSN:	2041-1723
Published:	Springer Nature 2022
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URI:	https://cronfa.swan.ac.uk/Record/cronfa59903
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Here, we study the possibility ofde-exciting the molecular rotation of a D2 molecule, from J = 2 to the non-rotatingJ = 0 state, without using an energy-matched perturbation. We show that passing the beamthrough a 1 m long magnetic field, which splits the rotational projection states by only10−12 eV, can change the probability that a molecule-surface collision will stop a moleculefrom rotating and lose rotational energy which is 9 orders larger than that of the magneticmanipulation. Calculations confirm that different rotational orientations have different deexcitation probabilities but underestimate rotational flips (ΔmJ≠0), highlighting the importance of the results as a sensitive benchmark for further developing theoretical models ofmolecule-surface interactions.</abstract><type>Journal Article</type><journal>Nature Communications</journal><volume>13</volume><journalNumber/><paginationStart/><paginationEnd/><publisher>Springer Nature</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint/><issnElectronic>2041-1723</issnElectronic><keywords>Molecular rotations, chemistry</keywords><publishedDay>28</publishedDay><publishedMonth>4</publishedMonth><publishedYear>2022</publishedYear><publishedDate>2022-04-28</publishedDate><doi>10.1038/s41467-022-29830-3</doi><url/><notes>Supplementary information: The online version contains supplementary materialavailable at https://doi.org/10.1038/s41467-022-29830-3.</notes><college>COLLEGE NANME</college><department>Chemistry</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>CHEM</DepartmentCode><institution>Swansea University</institution><apcterm>External research funder(s) paid the OA fee (includes OA grants disbursed by the Library)</apcterm><funders>The authors would like to thank Prof. Geert-Jan Kroes for stimulating scientific discussions and Prof. Mark Brouard for stimulating scientific discussions and critical reading of the manuscript. 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spelling	2022-05-04T11:54:17.7744066 v2 59903 2022-04-25 Stopping molecular rotation using coherent ultra-low-energy magnetic manipulations 8ff1942a68a875f00d473d51aa4947a1 0000-0003-4119-6903 Helen Chadwick Helen Chadwick true false 1b9a6f5d8a11831f745b2604738b0dce Aisling Stewart Aisling Stewart true false 3ddda180e33166b4c459279027052f21 Yosef Alkoby Yosef Alkoby true false 6ff8a323e44fdcca17ff9b7f74896039 0000-0002-7494-0308 Dagmar Butkovicova Dagmar Butkovicova true false 1401818466c1114ae2035b811568a38e 0000-0003-3203-5577 Gil Alexandrowicz Gil Alexandrowicz true false 2022-04-25 CHEM Rotational motion lies at the heart of intermolecular, molecule-surface chemistry and coldmolecule science, motivating the development of methods to excite and de-excite rotations.Existing schemes involve perturbing the molecules with photons or electrons which supply orremove energy comparable to the rotational level spacing. Here, we study the possibility ofde-exciting the molecular rotation of a D2 molecule, from J = 2 to the non-rotatingJ = 0 state, without using an energy-matched perturbation. We show that passing the beamthrough a 1 m long magnetic field, which splits the rotational projection states by only10−12 eV, can change the probability that a molecule-surface collision will stop a moleculefrom rotating and lose rotational energy which is 9 orders larger than that of the magneticmanipulation. Calculations confirm that different rotational orientations have different deexcitation probabilities but underestimate rotational flips (ΔmJ≠0), highlighting the importance of the results as a sensitive benchmark for further developing theoretical models ofmolecule-surface interactions. Journal Article Nature Communications 13 Springer Nature 2041-1723 Molecular rotations, chemistry 28 4 2022 2022-04-28 10.1038/s41467-022-29830-3 Supplementary information: The online version contains supplementary materialavailable at https://doi.org/10.1038/s41467-022-29830-3. COLLEGE NANME Chemistry COLLEGE CODE CHEM Swansea University External research funder(s) paid the OA fee (includes OA grants disbursed by the Library) The authors would like to thank Prof. Geert-Jan Kroes for stimulating scientific discussions and Prof. Mark Brouard for stimulating scientific discussions and critical reading of the manuscript. This work was funded by an ERC consolidator grant (Horizon 2020 Research and Innovation Programme grant 772228) (G. A.) and an EPSRC New Horizons grant (EP/V048589/1) (G. A.). EP/V048589/1 2022-05-04T11:54:17.7744066 2022-04-25T11:52:18.4087064 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemistry Helen Chadwick 0000-0003-4119-6903 1 Mark F. Somers 2 Aisling Stewart 3 Yosef Alkoby 4 Thomas J.D. Carter 5 Dagmar Butkovicova 0000-0002-7494-0308 6 Gil Alexandrowicz 0000-0003-3203-5577 7 59903__23940__d13b95c6bbf94ccdae6f29121ee0982f.pdf 59903.VOR.pdf 2022-04-29T15:40:30.6801970 Output 1121168 application/pdf Version of Record true This article is licensed under a Creative Commons Attribution 4.0 International License. true eng http://creativecommons.org/licenses/by/4.0/
title	Stopping molecular rotation using coherent ultra-low-energy magnetic manipulations
spellingShingle	Stopping molecular rotation using coherent ultra-low-energy magnetic manipulations Helen Chadwick Aisling Stewart Yosef Alkoby Dagmar Butkovicova Gil Alexandrowicz
title_short	Stopping molecular rotation using coherent ultra-low-energy magnetic manipulations
title_full	Stopping molecular rotation using coherent ultra-low-energy magnetic manipulations
title_fullStr	Stopping molecular rotation using coherent ultra-low-energy magnetic manipulations
title_full_unstemmed	Stopping molecular rotation using coherent ultra-low-energy magnetic manipulations
title_sort	Stopping molecular rotation using coherent ultra-low-energy magnetic manipulations
author_id_str_mv	8ff1942a68a875f00d473d51aa4947a1 1b9a6f5d8a11831f745b2604738b0dce 3ddda180e33166b4c459279027052f21 6ff8a323e44fdcca17ff9b7f74896039 1401818466c1114ae2035b811568a38e
author_id_fullname_str_mv	8ff1942a68a875f00d473d51aa4947a1_*_Helen Chadwick 1b9a6f5d8a11831f745b2604738b0dce__Aisling Stewart 3ddda180e33166b4c459279027052f21__Yosef Alkoby 6ff8a323e44fdcca17ff9b7f74896039__Dagmar Butkovicova 1401818466c1114ae2035b811568a38e_**_Gil Alexandrowicz
author	Helen Chadwick Aisling Stewart Yosef Alkoby Dagmar Butkovicova Gil Alexandrowicz
author2	Helen Chadwick Mark F. Somers Aisling Stewart Yosef Alkoby Thomas J.D. Carter Dagmar Butkovicova Gil Alexandrowicz
format	Journal article
container_title	Nature Communications
container_volume	13
publishDate	2022
institution	Swansea University
issn	2041-1723
doi_str_mv	10.1038/s41467-022-29830-3
publisher	Springer Nature
college_str	Faculty of Science and Engineering
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hierarchy_top_id	facultyofscienceandengineering
hierarchy_top_title	Faculty of Science and Engineering
hierarchy_parent_id	facultyofscienceandengineering
hierarchy_parent_title	Faculty of Science and Engineering
department_str	School of Engineering and Applied Sciences - Chemistry{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemistry
document_store_str	1
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description	Rotational motion lies at the heart of intermolecular, molecule-surface chemistry and coldmolecule science, motivating the development of methods to excite and de-excite rotations.Existing schemes involve perturbing the molecules with photons or electrons which supply orremove energy comparable to the rotational level spacing. Here, we study the possibility ofde-exciting the molecular rotation of a D2 molecule, from J = 2 to the non-rotatingJ = 0 state, without using an energy-matched perturbation. We show that passing the beamthrough a 1 m long magnetic field, which splits the rotational projection states by only10−12 eV, can change the probability that a molecule-surface collision will stop a moleculefrom rotating and lose rotational energy which is 9 orders larger than that of the magneticmanipulation. Calculations confirm that different rotational orientations have different deexcitation probabilities but underestimate rotational flips (ΔmJ≠0), highlighting the importance of the results as a sensitive benchmark for further developing theoretical models ofmolecule-surface interactions.
published_date	2022-04-28T04:17:33Z
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score	11.014224

Stopping molecular rotation using coherent ultra-low-energy magnetic manipulations

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