Shot-noise-induced random telegraph noise in shuttle current

2019-12-07 20:49:20

current vibration noise modes colloid

责任者: Nishiguchi, N. 单位: Dept. of Appl. Phys., Hokkaido Univ., Sapporo, Japan 来源出处: Physical Review Letters(Phys. Rev. Lett. (USA)),2002/08/05,89(6):066802-1 摘要: Random telegraph noise in the electric current produced by shot noise is predicted for an array of movable colloid particles by Monte Carlo and molecular dynamics calculations. The electron transport is attributed to the shuttle mechanism where moving colloid particles carry charges. The colloid-particle motion induced by the source-drain voltage shows periodic and/or quasiperiodic vibrations, and the current value depends on the vibration modes. Shot noise that is uncorrelated with the colloid-particle motion causes transitions between the periodic and quasiperiodic vibration modes, resulting in random switching between the current levels corresponding to the vibration modes 关键词: electric current;metal theory;molecular dynamics method;Monte Carlo methods;nanostructured materials;shot noise;shot-noise-induced random telegraph noise;shuttle current;Monte Carlo simulation;molecular dynamics calculations;electron transport;colloid-particle motion;source-drain voltage;quasiperiodic vibrations;vibration modes;periodic vibration modes;current level random switching;metal nanoparticle arrays