Piezoresistive Memories Based on Two-Dimensional Nano-Scale Electromechanical Systems

Abstract

In this work we present piezoresistive memory-bits based on two-dimensional nano-scale electro-mechanical systems. We demonstrate it is possible to achieve different electrical responses by fine control of micro-structural asymmetries and that information can be encoded in the geometrical configuration of the device and read as in classical ReRAM memories by measuring the current flowing across it. Based on the potential energy landscape of the device, we estimate the energy cost to operate the proposed memories. The estimated energy requirements for a single bit compete with existing technologies.

Keywords

• memory bit
• heterostructure
• piezoresistivity
• molybdenum disulfide (MoS2)
• hexagonal boron nitride (h-BN)
• NEMS