Thermally Controllable Break Junctions with High Bandwidths and High Integrabilities
MENG Chao1, HUANG Pu1, ZHOU Jing-Wei1, DUAN Chang-Kui2, DU Jiang-Feng1**
1Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026 2Department of Physics, University of Science and Technology of China, Hefei 230026
Abstract：Break junctions are important in generating nanosensors and single molecular devices. The mechanically controllable 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.
2015, Vol. 32 
