Comparison of the temperature dependence of the mechanical dissipation in thin films of Ta2O5 and Ta2O5 doped with TiO2

被引：52

作者：

Martin, I. W. ^{[1
]}

Chalkley, E. ^{[1
]}

Nawrodt, R. ^{[1
]}

Armandula, H. ^{[2
]}

Bassiri, R. ^{[1
]}

Comtet, C. ^{[3
]}

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.

Rowan, S. ^{[1
]}

Schwarz, C. ^{[7
]}

Seidel, P. ^{[7
]}

Vodel, W. ^{[7
]}

Woodcraft, A. L. ^{[9
,10
]}

机构：

[1] Univ Glasgow, Dept Phys & Astron, SUPA, Glasgow G12 8QQ, Lanark, Scotland

[2] CALTECH, LIGO Lab, Pasadena, CA 91125 USA

[3] IN2P3, CNRS, LMA, Paris, France

[4] Stanford Univ, Edward L Ginzton Lab, Stanford, CA 94305 USA

[5] Embry Riddle Aeronaut Univ, Prescott, AZ 86301 USA

[6] MIT, LIGO Lab, Cambridge, MA 02139 USA

[7] Univ Jena, Inst Solid State Phys, D-07743 Jena, Germany

[8] Hobart & William Smith Coll, Dept Phys, Geneva, NY 14456 USA

[9] Univ Edinburgh, Inst Astron, SUPA, Edinburgh EH9 3HJ, Midlothian, Scotland

[10] UK Astron Technol Ctr, Edinburgh EH9 3HJ, Midlothian, Scotland

来源：

CLASSICAL AND QUANTUM GRAVITY | 2009年 / 26卷 / 15期

基金：

英国工程与自然科学研究理事会; 美国国家科学基金会;

关键词：

THERMAL NOISE; ULTRASONIC-ABSORPTION; ELASTIC PROPERTIES; TEST MASSES; COATINGS; RELAXATION; SILICON; SIO2;

D O I：

10.1088/0264-9381/26/15/155012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Here we report the first results comparing the temperature dependence of the mechanical dissipation in thin films of Ta2O5 and Ta2O5 doped with TiO2, of a type suitable for use in the multilayer optical coatings for advanced gravitational wave detectors. The results indicate that doping Ta2O5 with TiO2 can significantly alter the distribution of activation energies associated with the low-temperature dissipation peak.

引用

页数：11

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