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DOI | 10.1126/science.aar6939 |
Elastic strain engineering for ultralow mechanical dissipation | |
Ghadimi, A. H.1; Fedorov, S. A.1; Engelsen, N. J.1; Bereyhi, M. J.1; Schilling, R.1; Wilson, D. J.2; Kippenberg, T. J.1 | |
2018-05-18 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2018 |
卷号 | 360期号:6390页码:764-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland |
英文摘要 | Extreme stresses can be produced in nanoscale structures; this feature has been used to realize enhanced materials properties, such as the high mobility of silicon in modern transistors. We show how nanoscale stress can be used to realize exceptionally low mechanical dissipation when combined with "soft-clamping"-a form of phononic engineering. Specifically, using a nonuniform phononic crystal pattern, we colocalize the strain and flexural motion of a free-standing silicon nitride nanobeam. Ringdown measurements at room temperature reveal string-like vibrational modes with quality (Q) factors as high as 800 million and Q x frequency exceeding 10(15) hertz. These results illustrate a promising route for engineering ultracoherent nanomechanical devices. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000432473500042 |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/198690 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Ecole Polytech Fed Lausanne, Inst Phys, CH-1015 Lausanne, Switzerland; 2.IBM Res Zurich, CH-8803 Ruschlikon, Switzerland |
推荐引用方式 GB/T 7714 | Ghadimi, A. H.,Fedorov, S. A.,Engelsen, N. J.,et al. Elastic strain engineering for ultralow mechanical dissipation[J]. SCIENCE,2018,360(6390):764-+. |
APA | Ghadimi, A. H..,Fedorov, S. A..,Engelsen, N. J..,Bereyhi, M. J..,Schilling, R..,...&Kippenberg, T. J..(2018).Elastic strain engineering for ultralow mechanical dissipation.SCIENCE,360(6390),764-+. |
MLA | Ghadimi, A. H.,et al."Elastic strain engineering for ultralow mechanical dissipation".SCIENCE 360.6390(2018):764-+. |
条目包含的文件 | 条目无相关文件。 |
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