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Enhanced medium-range order in vapor-deposited germania glasses at elevated temperatures

Yang, Le and Vajente, Gabriele and Fazio, Mariana and Ananyeva, Alena and Billingsley, Garilynn and Markosyan, Ashot and Bassiri, Riccardo and Prasai, Kiran and Fejer, Martin M. and Chicoine, Martin and Schiettekatte, François and Menoni, Carmen S. (2021) Enhanced medium-range order in vapor-deposited germania glasses at elevated temperatures. Science Advances, 7 (37). Art. No. eabh1117. ISSN 2375-2548. PMCID PMC8442899. doi:10.1126/sciadv.abh1117.

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Glasses are nonequilibrium solids with properties highly dependent on their method of preparation. In vapor-deposited molecular glasses, structural organization could be readily tuned with deposition rate and substrate temperature. Here, we show that the atomic arrangement of strong network-forming GeO₂ glass is modified at medium range (<2 nm) through vapor deposition at elevated temperatures. Raman spectral signatures distinctively show that the population of six-membered GeO₄ rings increases at elevated substrate temperatures. Deposition near the glass transition temperature is more efficient than postgrowth annealing in modifying atomic structure at medium range. The enhanced medium-range organization correlates with reduction of the room temperature internal friction. Identifying the microscopic origin of room temperature internal friction in amorphous oxides is paramount to design the next-generation interference coatings for mirrors of the end test masses of gravitational wave interferometers, in which the room temperature internal friction is a main source of noise limiting their sensitivity.

Item Type:Article
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URLURL TypeDescription CentralArticle Paper
Yang, Le0000-0002-8868-5977
Vajente, Gabriele0000-0002-7656-6882
Fazio, Mariana0000-0002-9057-9663
Billingsley, Garilynn0000-0002-4141-2744
Markosyan, Ashot0000-0002-1510-3075
Bassiri, Riccardo0000-0001-8171-6833
Prasai, Kiran0000-0001-6552-097X
Fejer, Martin M.0000-0002-5512-1905
Chicoine, Martin0000-0003-0630-3996
Schiettekatte, François0000-0002-2112-9378
Menoni, Carmen S.0000-0001-9185-2572
Additional Information:© 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). Submitted 2 March 2021; Accepted 21 July 2021; Published 10 September 2021. The Raman scattering was performed at the Raman Microspectroscopy Laboratory in the Department of Geological Science at the University of Colorado-Boulder. Funding: This study was supported by the National Science Foundation (NSF) LIGO program through grant nos. 1710957 (L.Y. and C.S.M.) and 1708010 (M.F. and C.S.M.), NSF awards PHY-1707866 and PHY-1708175 (A.M., R.B., and M.M.F.), GBMF grant no. 6793 (A.M., K.P., R.B., and M.M.F.), FRQNT through the Regroupement québécois sur les matériaux de pointe (RQMP), and Natural Sciences and Engineering Research Council of Canada (M.C. and F.S.). Author contributions: L.Y., M.F., and C.S.M. conceived the experiment. L.Y. and M.F. performed the thin-film deposition and material spectroscopy analysis. G.V., A.A., and G.B. performed the room temperature internal friction measurements. A.M., R.B., K.P., and M.M.F. contributed to the XRD measurements. M.C. and F.S. contributed to the RBS measurements. All authors contributed to the preparation of the manuscript. The authors declare that they have no competing interests. Data and materials availability: All data needed to evaluate the conclusions in the paper are present in the paper and/or the Supplementary Materials.
Funding AgencyGrant Number
Gordon and Betty Moore Foundation6793
Fonds de recherche du Québec - Nature et technologies (FRQNT)UNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Issue or Number:37
PubMed Central ID:PMC8442899
Record Number:CaltechAUTHORS:20210914-180921825
Persistent URL:
Official Citation:L. Yang, G. Vajente, M. Fazio, A. Ananyeva, G. Billingsley, A. Markosyan, R. Bassiri, K. Prasai, M. M. Fejer, M. Chicoine, F. Schiettekatte, C. S. Menoni, Enhanced medium-range order in vapor-deposited germania glasses at elevated temperatures. Sci. Adv. 7, eabh1117 (2021); DOI: 10.1126/sciadv.abh1117
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:110846
Deposited By: Tony Diaz
Deposited On:14 Sep 2021 20:06
Last Modified:27 Sep 2021 20:30

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