Controlled Self Compliance Filamentary Memory Behavior in Al/NiFe2O4/FTO Resistive Switching Device

IF 0.8 4区 综合性期刊 Q3 MULTIDISCIPLINARY SCIENCES
Vidit Pandey, Priyanka Nehla, Sandeep Munjal
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引用次数: 2

Abstract

Herein, we report a controlled non-volatile bipolar resistive switching in nanostructured NiFe2O4 films using a capacitor like Al(aluminum)/NiFe2O4/FTO(fluorine-doped tin oxide) metal–insulator-metal device, which shows uniform resistive switching with a resistance ratio of high resistance state (HRS) to low resistance state (LRS) more than 3 × 102, accompanied with electroforming-free feature without any application of compliance current (ICC). The device can operate (read and switch) in small voltage and current ranges that makes it a low-power resistive switching device. The conduction mechanism in LRS was found to be Ohmic, whereas the HRS was governed by space charge-limited conduction mechanism. The current voltage and resistance temperature measurements indicate the presence of an interfacial AlOx layer with oxygen-related defects near the top Al/NiFe2O4 interface. The device exhibits good program/erase endurance properties, acceptable memory window, and uniform resistive switching. In addition, different intermediate resistance states between HRS and LRS can be obtained in a controlled manner by choosing different stop voltages during the gradual RESET process, which makes the device a multilevel RS device and a potential candidate for future non-volatile resistive random access memory (RRAM).

Abstract Image

Al/NiFe2O4/FTO阻性开关器件的可控自顺应丝状记忆行为
本文报道了采用Al(铝)/NiFe2O4/FTO(氟掺杂氧化锡)金属-绝缘体-金属器件等电容在纳米结构NiFe2O4薄膜中实现了可控的非易失性双极电阻开关,该器件显示出均匀的电阻开关,高阻态(HRS)与低阻态(LRS)的电阻比大于3 × 102,且无电形成,无需施加任何符合电流(ICC)。该器件可以在小电压和电流范围内工作(读取和开关),使其成为低功率电阻开关器件。LRS的传导机制为欧姆传导机制,而HRS的传导机制为空间电荷限制传导机制。电流、电压和电阻温度的测量表明,在Al/NiFe2O4界面附近存在一个带有氧相关缺陷的AlOx界面层。该器件具有良好的程序/擦除持久性,可接受的内存窗口和均匀的电阻开关。此外,在逐渐复位过程中,通过选择不同的停止电压,可以可控地获得HRS和LRS之间不同的中间电阻状态,这使得该器件成为多电平RS器件,并成为未来非易失性电阻随机存取存储器(RRAM)的潜在候选器件。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
2.60
自引率
0.00%
发文量
37
审稿时长
>12 weeks
期刊介绍: To promote research in all the branches of Science & Technology; and disseminate the knowledge and advancements in Science & Technology
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