Anatomy of Ag/Hafnia‐Based Selectors with 1010 Nonlinearity

• DOI: 10.1002/adma.201604457
• Publication Date: 2017-01-30T12:39:08Z
• Authors: Rivu Midya; Zhongrui Wang; Jiaming Zhang; Sergey E. Savel'ev; Can Li; Mingyi Rao; Moon Hyung Jang; Saumil Joshi; Hao Jiang; Peng Lin; Kate Norris; Ning Ge; Qing Wu; Mark Barnell; Zhiyong Li; Huolin L. Xin; R. Stanley Williams; Qiangfei Xia; J. Joshua Yang
• Keywords: 02 engineering and technology; 0210 nano-technology

A novel Ag/oxide-based threshold switching device with attractive features including ≈1010 nonlinearity is developed. High-resolution transmission electron microscopic analysis of the nanoscale crosspoint device suggests that elongation of an Ag nanoparticle under voltage bias followed by spontaneous reformation of a more spherical shape after power off is responsible for the observed threshold switching.