Overview of Spintronic Sensors, Internet of Things, and Smart Living

Liu, X.; Lam, Kwok-Tai; Zhu, Ke; Zheng, Chao; Li, X.; Du, Ying; Liu, Chunhua; Pong, Philip W. T.

doi:10.48550/arxiv.1611.00317

Cited by 4 publications

(2 citation statements)

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“…Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. incorporated chip-based sensors are becoming very promising for growing automotive and Internet of things industries and Intelligent transport [6][7][8]. It is of great interest to have lowdimension sensors with increased sensitivity and extended capabilities operating at room temperatures.…”

Section: Introductionmentioning

confidence: 99%

Hybrid graphene-manganite thin film structure for magnetoresistive sensor application

et al. 2019

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An increasing demand of magnetic field sensors with high sensitivity at room temperatures and spatial resolution at micro-nanoscales has resulted in numerous investigations of physical phenomena in advanced materials, and fabrication of novel magnetoresistive devices. In this study the novel magnetic field sensor based on combination of a single layer graphene (SLG) and thin nanostructured manganite La0.8Sr0.2MnO3 (LSMO) film—hybrid graphene-manganite (GM) structure, is proposed and fabricated. The hybrid GM structure employs the properties of two materials—SLG and LSMO—on the nanoscale level and results in the enhanced sensitivity to magnetic field of the hybrid sensor on the macroscopic level. Such result is achieved by designing the hybrid GM sensor in a Wheatstone half-bridge which enables to employ in the device operation two effects of nanomaterials—large Lorentz force induced positive magnetoresistance of graphene and colossal negative magnetoresistance of nanostructured manganite film, and significantly increase the sensitivity S of the hybrid GM sensor in comparison with the individual SLG and LSMO sensors: S = 5.5 mV T−1 for SLG, 14.5 mV T−1 for LSMO and 20 mV T−1 for hybrid GM at 0.5 T, when supply voltage was 1.249 V. The hybrid GM sensor operates in the range of (0.1–2.3) T and has lower sensitivity to temperature variations in comparison to the manganite sensor. Moreover, it can be applied for position sensing. The ability to control sensor’s characteristics by changing technological conditions of the fabrication of hybrid structure and tuning the nanostructure properties of manganite film is discussed.

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Section: Introductionmentioning

confidence: 99%

Hybrid graphene-manganite thin film structure for magnetoresistive sensor application

et al. 2019

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“…In the near future, the IoT appears to expand in scope and become critical to human life, aligned with the industrial revolution 4.0's goal of establishing smart living as a trending lifestyle focused on living a better life through the lens of reduced energy consumption. 195,196 To keep up with the advancement of more sophisticated technologies in the IoT era, it also requires smart materials. On the other hand, significant laboratory research has been conducted to integrate iron oxide-based materials into a next-generation device platform with integrated IoT systems.…”

Section: Prospect Of the Next-generation Devicesmentioning

confidence: 99%

Crafting a Next-Generation Device Using Iron Oxide Thin Film: A Review

Amrillah

Abdullah

Sari

et al. 2021

Crystal Growth & Design

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Despite extensive research into novel materials, iron oxides remain fascinating and attract considerable attention because of their versatility, stability, ease of fabrication, low cost, natural abundance, and environmental friendliness. Because of their wealth of magnetic, optical, and electrical properties, iron oxides are particularly multifunctional materials that can be integrated into various devices. In this article, we will discuss the applications of iron oxide thin films in electronics (spintronics devices), energy (batteries and solar cells or photovoltaics), and sensors (gas, humidity, strain, biosensors, and so on). We begin with the most recent forms and fabrication methods for iron oxide thin film, as well as a fundamental understanding of the material. Additionally, the application constraints of these devices are discussed, and the challenges, solutions, and prospects for electronic devices based on iron oxide are outlined.

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