This article describes the fabrication of Zinc Ferrite-Zinc oxide (ZFO-ZnO) heterostructure devices and the various sensing schemes that can be exploited using the same. A solvothermal approach has been used for the synthesis of ZFO-ZnO heterostructures having different compositions. The investigation of magnetic and electric properties is performed by varying the ratio of Zn $^{2+}$ and Fe $^{3+}$ ions. These heterostructures show enhanced magnetization with (i) an increase in the concentration of Fe $^{3+}$ ions and (ii) exposure to hydrogen (H $_2$ ) gas. These fine molar ratio adjustments in magnetism are engineered to obtain desirable sensing properties. We fabricated several two-terminal devices for the study of multiple sensing schemes. These devices demonstrated a linear current-voltage characteristic, with enhanced electrical resistance when the Fe $^{3+}$ ion concentration is reduced. Keywords- Magnetic analysis, Zinc Ferrite-Zinc oxide, sensors, room temperature, heterostructures, tunability and nanotechnology

中文翻译：

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具有不同铁锌摩尔比的异质结构磁性纳米球的氢传感

本文介绍了锌铁氧体-氧化锌 (ZFO-ZnO) 异质结构器件的制造以及可以使用该器件开发的各种传感方案。溶剂热方法已用于合成具有不同组成的 ZFO-ZnO 异质结构。通过改变 Zn 的比例来研究磁和电特性 $^{2+}$ 和铁 $^{3+}$离子。这些异质结构显示出增强的磁化强度 (i) Fe 浓度的增加 $^{3+}$ 离子和 (ii) 暴露于氢 (H $_2$ ） 气体。这些磁性的精细摩尔比调整旨在获得理想的传感特性。我们制造了几个用于研究多种传感方案的两端设备。这些器件表现出线性电流-电压特性，当 Fe $^{3+}$离子浓度降低。关键词 - 磁性分析、锌铁氧体-氧化锌、传感器、室温、异质结构、可调性和纳米技术