Thermally Controllable Break Junctions with High Bandwidths and High Integrabilities

Break junctions are important in generating nanosensors and single molecular devices. The mechanically con- trollable break junction is the most widely used method for a break junction due to its simplicity and stability. However, the bandwidths of traditional devices are limited to about a few hert...

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Published inChinese physics letters Vol. 32; no. 7; pp. 110 - 113
Main Author 孟超 黄璞 周经纬 段昌奎 杜江峰
Format Journal Article
LanguageEnglish
Published 01.07.2015
Subjects
Bandwidth
Breaking
Controllability
Devices
High speed
Mathematical analysis
Nanostructure
Stability
单分子器件
可控性
带宽和
微机电系统
断裂系统
有限元分析
机械控制系统
独立控制
Online AccessGet full text
ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/32/7/076201

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Summary:Break junctions are important in generating nanosensors and single molecular devices. The mechanically con- trollable break junction is the most widely used method for a break junction due to its simplicity and stability. However, the bandwidths of traditional devices are limited to about a few hertz. Moreover, when using traditional methods it is hard to allow independent control of more than one junction. Here we propose on-chip thermally controllable break junctions to overcome these challenges. This is verified by using finite element analysis. Adopting microelectromechanical systems produces features of high bandwidth and independent controllability to this new break junction system. The proposed method will have a wide range of applications on on-chip high speed independent controllable and highly integrated single molecule devices.
Bibliography:Break junctions are important in generating nanosensors and single molecular devices. The mechanically con- trollable break junction is the most widely used method for a break junction due to its simplicity and stability. However, the bandwidths of traditional devices are limited to about a few hertz. Moreover, when using traditional methods it is hard to allow independent control of more than one junction. Here we propose on-chip thermally controllable break junctions to overcome these challenges. This is verified by using finite element analysis. Adopting microelectromechanical systems produces features of high bandwidth and independent controllability to this new break junction system. The proposed method will have a wide range of applications on on-chip high speed independent controllable and highly integrated single molecule devices.
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MENG Chao, HUANG Pu, ZHOU Jing-Wei, DUAN Chang-Kui, DU Jiang-Feng（1.Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics University of Science and Technology of China, Hefei 230026 2.Department of Physics, University of Science and Technology of China, Hefei 230026）
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ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/32/7/076201