Published August 7, 2009
| Version public
Journal Article
Comparison of the temperature dependence of the mechanical dissipation in thin films of Ta_2O_5 and Ta_2O_5 doped with TiO_2
Creators
- Martin, I. W.1
- Chalkley, E.1
- Nawrodt, R.1
- Armandula, H.2
- Bassiri, R.1
- Comtet, C.3
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Fejer, M. M.4
- Gretarsson, A.5
- Harry, G.6
- Heinert, D.7
- Hough, J.1
- MacLaren, I.1
- Michel, C.3
- Montorio, J.-L.3
- Morgado, N.3
- Penn, S.8
- Reid, S.1
- Route, R.4
- Rowan, S.1
- Schwarz, C.7
- Seidel, P.7
- Vodel, W.7
- Woodcraft, A. L.9, 10
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1.
University of Glasgow
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2.
California Institute of Technology
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3.
Laboratoire des Matériaux Avancés
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4.
Stanford University
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5.
Embry–Riddle Aeronautical University
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6.
Massachusetts Institute of Technology
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7.
Friedrich Schiller University Jena
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8.
Hobart and William Smith Colleges
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9.
University of Edinburgh
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10.
UK Astronomy Technology Centre
Abstract
Here we report the first results comparing the temperature dependence of the mechanical dissipation in thin films of Ta_2O_5 and Ta_2O_5 doped with TiO_2, of a type suitable for use in the multilayer optical coatings for advanced gravitational wave detectors. The results indicate that doping Ta_2O_5 with TiO_2 can significantly alter the distribution of activation energies associated with the low-temperature dissipation peak.
Additional Information
Copyright © Institute of Physics and IOP Publishing Limited 2009. Received 3 March 2009, in final form 19 June 2009. Published 14 July 2009. Print publication: Issue 15 (7 August 2009). We are grateful for the financial support provided by STFC, the University of Glasgow, the Leverhulme Trust, EPSRC, the ILIAS Strega project, the German Science Foundation under contract SFB Transregio 7 and the National Science Foundation under grants PHY-07 57896 and PHY-05 02641 (Stanford) and NSF-0653590 (HWS). IM and SR are supported by an STFC Postdoctoral Fellowship and a Royal Society of Edinburgh Research Fellowship, respectively. LIGO was constructed by the California Institute of Technology and Massachusetts Institute of Technology with funding from the National Science Foundation and operates under cooperative agreement PHY-0107417. We would like to thank our colleagues in the LSC and VIRGO collaborations and within SUPA for their interest in this work. This paper has LIGO Document Number LIGO-P0900008.Additional details
Identifiers
- Eprint ID
- 15595
- Resolver ID
- CaltechAUTHORS:20090903-162241151
Funding
- Science and Technology Facilities Council
- University of Glasgow
- Leverhulme Trust
- Engineering and Physical Sciences Research Council
- European Union
- Deutsche Forschungsgemeinschaft
- SFB Transregio 7
- NSF
- PHY-07 57896
- NSF
- PHY-05 02641
- NSF
- NSF-0653590
- Royal Society of Edinburgh
- NSF
- PHY-0107417
Dates
- Created
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2009-09-08Created from EPrint's datestamp field
- Updated
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2022-07-12Created from EPrint's last_modified field
Caltech Custom Metadata
- Other Numbering System Name
- LIGO Document Number
- Other Numbering System Identifier
- LIGO-P0900008