Memristive Behavior Based on Ba-Doped SrTiO ₃ Films

Abstract

The Sr0.95Ba0.05TiO3 (SBT) nanometer film is prepared on the commercially available Pt/TiO2/SiO2/Si substrate by radio-frequency magnetron sputtering. The x-ray diffraction pattern and the scanning electron microscope image of the cross-sectional profile of the SBT nanometer film are depicted. The memristive mechanism is inferred. The mathematical model is calculated, where M(q) denotes the memristance depending on the quantity of electric charge, and q(t) denotes the quantity of electric charge depending on the time. The theoretical I–V characteristics of the SBT nanometer film are obtained by the mathematical model. The results show that the theoretical I–V characteristics are consistent with the measured I–V characteristics. Moreover, the mathematical model could guide the research on applications of the memristor.

RC Bridge Oscillation Memristor Chaotic Circuit for Electrical and Electronic Technology Extended Simulation Experiment

“…In our previous work, we prepared the SBT memristor [ 44 ]. As a new circuit element, memristor represents the connection between charge and flux.…”

“…Most of the memristors used in current chaotic circuits are implemented by analog circuit and FPGA [ 43 ]. In the paper, a flux-controlled mathematical model of physical SBT memristor is used [ 44 , 45 ]. In this work, the physical memristor is used and the program design is simplified to adapt to the experimental teaching.…”

“…The data supporting the SBT memristor and the mathematical model of memristor are publicly available in two articles (Reference to [ 44 , 45 ]).…”

A novel memcapacitor and its application in a chaotic circuit

“…In the previous researches, the mathematical model of the memristor had been proposed [30,31]. According to the experimental measurement of the memristor, the flux-controlled model of the memristor was obtained as follows:…”

“…Based on the method of constructing physical memcapacitor proposed by Ref. [29], this paper uses the physical SBT (Sr 0.95 Ba 0.05 TiO 3 ) memristor [30,31] in our lab to design a memcapacitor, which can be directly used as a circuit element to generates chaos in the circuit. This paper constructs a fifth-order chaotic circuit composed of memcapacitor and memristor.…”