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A mechanism for ageing in a deeply supercooled molecular glass

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A mechanism for ageing in a deeply supercooled molecular glass. / Cassidy, Andrew; Jørgensen, Mads R.V.; Glavic, Artur; Lauter, Valeria; Plekan, Oksana; Field, David.

I: Chemical Communications, Bind 57, Nr. 52, 04.07.2021, s. 6368-6371.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Harvard

Cassidy, A, Jørgensen, MRV, Glavic, A, Lauter, V, Plekan, O & Field, D 2021, 'A mechanism for ageing in a deeply supercooled molecular glass', Chemical Communications, bind 57, nr. 52, s. 6368-6371. https://doi.org/10.1039/d1cc01639c

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MLA

Vancouver

Cassidy A, Jørgensen MRV, Glavic A, Lauter V, Plekan O, Field D. A mechanism for ageing in a deeply supercooled molecular glass. Chemical Communications. 2021 jul 4;57(52):6368-6371. https://doi.org/10.1039/d1cc01639c

Author

Cassidy, Andrew ; Jørgensen, Mads R.V. ; Glavic, Artur ; Lauter, Valeria ; Plekan, Oksana ; Field, David. / A mechanism for ageing in a deeply supercooled molecular glass. I: Chemical Communications. 2021 ; Bind 57, Nr. 52. s. 6368-6371.

Bibtex

@article{8bb6186c367841fe9ed292d8edab42f5,
title = "A mechanism for ageing in a deeply supercooled molecular glass",
abstract = "Measurements of the decay of electric fields, formed spontaneously within vapour-deposited films ofcis-methyl formate, provide the first direct assessment of the energy barrier to secondary relaxation in a molecular glass. At temperatures far below the glass transition temperature, the mechanism of relaxation is shown to be through hindered molecular rotation. Magnetically-polarised neutron scattering experiments exclude diffusion, which is demonstrated to take place only close to the glass transition temperature.",
author = "Andrew Cassidy and J{\o}rgensen, {Mads R.V.} and Artur Glavic and Valeria Lauter and Oksana Plekan and David Field",
note = "Funding Information: AC&MRVJ thank the Danish National Research Foundation (Center for Interstellar Catalysis, DNRF150 & Center for Materials Crystallography, DNRF93, respectively) and the Danish Agency for Science, Technology, and Innovation for funding the instrument center DANSCATT. This research used resources at the Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. We thank H. Ambaye & A. C. Steffen during the preparation of the equipment for the NR experiments; and Drs M. Milas, U. Mueller and I. Kantor at the MAX IV Lab. during beam time at the BioMAX beamline. Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2021.",
year = "2021",
month = jul,
day = "4",
doi = "10.1039/d1cc01639c",
language = "English",
volume = "57",
pages = "6368--6371",
journal = "Chemical Communications",
issn = "1359-7345",
publisher = "ROYAL SOC CHEMISTRY",
number = "52",

}

RIS

TY - JOUR

T1 - A mechanism for ageing in a deeply supercooled molecular glass

AU - Cassidy, Andrew

AU - Jørgensen, Mads R.V.

AU - Glavic, Artur

AU - Lauter, Valeria

AU - Plekan, Oksana

AU - Field, David

N1 - Funding Information: AC&MRVJ thank the Danish National Research Foundation (Center for Interstellar Catalysis, DNRF150 & Center for Materials Crystallography, DNRF93, respectively) and the Danish Agency for Science, Technology, and Innovation for funding the instrument center DANSCATT. This research used resources at the Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. We thank H. Ambaye & A. C. Steffen during the preparation of the equipment for the NR experiments; and Drs M. Milas, U. Mueller and I. Kantor at the MAX IV Lab. during beam time at the BioMAX beamline. Publisher Copyright: © The Royal Society of Chemistry 2021.

PY - 2021/7/4

Y1 - 2021/7/4

N2 - Measurements of the decay of electric fields, formed spontaneously within vapour-deposited films ofcis-methyl formate, provide the first direct assessment of the energy barrier to secondary relaxation in a molecular glass. At temperatures far below the glass transition temperature, the mechanism of relaxation is shown to be through hindered molecular rotation. Magnetically-polarised neutron scattering experiments exclude diffusion, which is demonstrated to take place only close to the glass transition temperature.

AB - Measurements of the decay of electric fields, formed spontaneously within vapour-deposited films ofcis-methyl formate, provide the first direct assessment of the energy barrier to secondary relaxation in a molecular glass. At temperatures far below the glass transition temperature, the mechanism of relaxation is shown to be through hindered molecular rotation. Magnetically-polarised neutron scattering experiments exclude diffusion, which is demonstrated to take place only close to the glass transition temperature.

UR - http://www.scopus.com/inward/record.url?scp=85108873118&partnerID=8YFLogxK

U2 - 10.1039/d1cc01639c

DO - 10.1039/d1cc01639c

M3 - Journal article

C2 - 34105533

AN - SCOPUS:85108873118

VL - 57

SP - 6368

EP - 6371

JO - Chemical Communications

JF - Chemical Communications

SN - 1359-7345

IS - 52

ER -