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Title:

Microwave optomechanical measurement of non-metallized SiN strings at mK temperatures

Document type:
Zeitschriftenaufsatz
Author(s):
Kumar,S.; Klaß, Y.; Alperin, B.; Venkatachalam, S.; Zhou, X.; Weig, E.; Collin, E.; Fefferman, A.
Abstract:
The mechanical properties of amorphous materials (glasses) at low temperatures are dominated by effects of low energy excitations that are thought to be atomic-scale tunneling two level systems (TTLS). In nanometer-scale glass samples, the temperature dependence of the sound speed and dissipation is modified relative to that of bulk glass samples. In addition to this size effect, the usual presence of a polycrystalline metal in nanomechanical resonators leads to a further departure from the well...     »
Keywords:
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Journal title:
arXiv preprint arXiv:2110.00228 2021-10
Year:
2021
Year / month:
2021-10
Quarter:
4. Quartal
Month:
Oct
Language:
en
WWW:
https://arxiv.org/abs/2110.00228
Publisher:
Cornell University, Springer
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