Cryogenic mechanical loss of amorphous germania and titania-doped germania thin films

Khadka, S; Markosyan, A.S.; Prasai, Kiran; Dâna, Aykutlu; Yang, L.; C. Tait, S.; W. Martin, I.; S. Menoni, Carmen; M. Fejer, M.; Bassiri, R.

doi:10.1088/1361-6382/acf2dd

Public

Cryogenic mechanical loss of amorphous germania and titania-doped germania thin films

Published in Classical and Quantum Gravity • Aug 22, 2023

Authors:

S Khadka

A.S. Markosyan

Kiran Prasai

Abstract

Abstract The mechanical loss of amorphous thin films of germania (GeO2) and titania-doped germania (Ti:GeO2) deposited by ion-beam sputtering onto silicon double-paddle oscillators was studied from 10 K to 290 K. Undoped germania was found to show a wide cryogenic mechanical loss peak centered at ∼ ...

Subject

Amorphous solid

Doping

Annealing (glass)

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