超低機械的な分散のための弾性ストレスの工学
A H Ghadimi1, S A Fedorov1, N J Engelsen1
1Institute of Physics, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland.
Science (New York, N.Y.)
|April 14, 2018
まとめ
エンジニアは,ナノスケールストレスをソフトクランプ音声工学と組み合わせることで,ナノスケールデバイスで超低機械的な消耗を達成しました. この画期的な進歩により,高品質なノーマケニカルシステムが実現しました.
科学分野:
- 材料科学
- ナノテクノロジー
- 機械工学
背景:
- ナノスケールの構造は極度のストレスを発揮し,シリコントランジスタの高い電子移動性などの材料特性を高めることができます.
- ナノメカニカルシステムの機械的な分散は,その性能と一貫性を制限する重要な要因です.
研究 の 目的:
- 機械的な分散を減らすためにソフトクランプと組み合わせたナノスケールのストレスの使用を調査する.
- 極めて高品質な超一貫したナモメカニカルデバイスを設計する.
主な方法:
- 非均一なフォノニク・クリスタル・パターンを有するフリースタンドのナノビームの製造.
- ナノビーム内のストレスの位置と屈折運動.
- 振動モードと品質要因を特徴付けるため,室温でリングダウン測定を行います.
主要な成果:
- ナノビームにおける弦のような振動モードの実証
- 達成された品質 (Q) 要素は8億です.
- 観測されたQ × 周波数プロダクトは10^15ヘルツを超え,超低分散を示しています.
結論:
- 音声工学の形態であるソフトクランプは,ナノスケールのストレスと組み合わせると,機械的な分散を効果的に軽減します.
- 設計されたナノビームは,超一貫したナノメカニカル装置に適した性質を示しています.
- このアプローチは,高度なナノメカニカルシステムの開発に有望な経路を提供します.
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