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Nanomechanical Encoding Method Using Enhanced Thermal Concentration on a Metallic Nanobridge
Lee, Jeong Oen,Choi, Kwang-Wook,Choi, Seon-Jin,Kang, Min-Ho,Seo, Min-Ho,Kim, Il-Doo,Yu, Kyoungsik,Yoon, Jun-Bo American Chemical Society 2017 ACS NANO Vol.11 No.8
<P>We present a fast, energy-efficient nanothermomechanical encoding scheme for digital information storage and retrieval. Digital encoding processes are conducted by the bistable electrothermal actuation of a scalable nanobridge device. The electrothermal energy is highly concentrated by enhanced electron/phonon scattering and heat insulation in a sub-100 nm metallic layer. The efficient conversion of electrothermal energy into mechanical strain allows digital switching and programming processes within 60 ns at 0.75 V with a programming energy of only 54 pJ. Furthermore, this encoding scheme together with the thermally robust design enables data retention at temperatures up to 400 degrees C. These results suggest that the proposed nano-thermomechanical encoding method could contribute to low-power electronics and robust information storage/retrieval systems.</P>
Carbon-nanotube-based Nano Electromechanical Switches
이상욱,Anders Eriksson,Abdelrahim A. Sourab,캠벨 한국물리학회 2009 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.55 No.3
The fabrication of carbon nanotube (CNT) based nano electromechanical (NEM) switches and their electro-mechanical properties are discussed. Two different types of nano electromechanical switches, a cantilever type and a doubly-clamped type, will be introduced. The proposal of three terminal structures for the CNT-based NEM switch could lead to improvements in the stability of the switching performance. Both dc electro-mechanical properties and high-frequency measurements are used to study the switching performance. A comparison of the switching performances of both types of nano electromechanical switches is discussed at the end of the paper. The fabrication of carbon nanotube (CNT) based nano electromechanical (NEM) switches and their electro-mechanical properties are discussed. Two different types of nano electromechanical switches, a cantilever type and a doubly-clamped type, will be introduced. The proposal of three terminal structures for the CNT-based NEM switch could lead to improvements in the stability of the switching performance. Both dc electro-mechanical properties and high-frequency measurements are used to study the switching performance. A comparison of the switching performances of both types of nano electromechanical switches is discussed at the end of the paper.