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Redox-based resistive switching devices can be switched between a high resistance state and a low resistance state in a reversible manner. An important requirement is the stable operation between these two states for a high amount of switching cycles. In this work the switching dynamics of these devices are investigated by means of device simulation. Hereby, we discuss the conditions for which a fading...
Redox-based resistive switching devices are an emerging class of non-volatile ultra-scalable memory and logic devices. These devices offer complex internal device physics leading to rich dynamical behavior. Memristive device models are intended to reproduce the underlying redox-based resistive switching device behavior accurately to enable proper circuit simulations. A specific feature of resistively...
Memristive devices enable non-volatile data storage and in-memory computing capabilities. By using stateful logic approaches, hybrid CMOS nano-crossbar arrays offer additional functionalities such as arithmetic operations. To enable storage and computing on large-scale arrays, parasitic current paths within the array must be avoided. Therefore, for example, a complementary resistive switch (1CRS)...
Highly predictive memristive models of resistive switches are required to simulate the behavior of anti-serially connected resistive switches, so called complementary resistive switches (CRSs). As an emerging non-volatile device suited for ultra-dense memory architectures, CRS cells offer great potential also as content addressable memories. Here, we introduce a circuit model for TaOx-based resistive...
Non-volatile redox-based resistive memories (ReRAMs) and matched select devices are the key enabler for future ultra-dense passive crossbar arrays. Complementary Resistive Switches (CRSs) inherently comprise a matched selector and memory device, thus offer a highly promising approach to realize memory and logic functionality in a single device. Here, we show the realization of vertically stacked TaO...
pH measurement and control in a solvent extraction process using column extractors is a considerable challenge. This paper summarises the progress of WMT's understanding of the emulsion characteristics, hydraulic and kinetic regimes existing in the column extractors and their effects on pH measurement and control. Three sets of pilot scale test results are provided for a case study of nickel solvent...
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