Article
Engineering, Electrical & Electronic
Ferran Reverter
Summary: Two significant events in the physics of thermal sensors, the Seebeck effect and the study of the thermal dependence of pure metals, led to the development of thermocouples and RTDs respectively, which remain the main sensor technology for measuring extreme temperatures in industrial applications. This tutorial aims to explain the operating principles, characteristics, limitations, and new trends of the four main types of thermal sensors, comparing their advantages and disadvantages.
IEEE SENSORS JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Ke Wang, Yongming Tang, Jian Liu, Caiyin You, Long You
Summary: Co2MnSi (CMS) alloy is a promising ferromagnetic electrode material for spintronics devices. By annealing the CMS films, perpendicular magnetic anisotropy (PMA) can be introduced, leading to an increase in the saturation magnetization. The CMS/MgO interface is found to be crucial for PMA development, while the Pt/CMS interface is not essential.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2022)
Article
Engineering, Multidisciplinary
Mi-Mi Huang, Li-Bo Zhao, Xiang-Guang Han, Chen Jia, Yi Gao, Shu Fan, Ping Yang, Linxi Dong, Zhuang-De Jiang
Summary: A thin film temperature sensor chip was fabricated using micro electromechanical systems technology, with a Ti/Pt film layer on a silicon substrate. The chip's electrical properties and structural characteristics were evaluated through annealing experiments and testing.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Abid, Poonam Sehrawat, C. M. Julien, S. S. Islam
Summary: The WS2-QD/RGO hybrid temperature sensor demonstrated excellent performance in a wide temperature range and successfully monitored human body temperature. The device is simple, flexible, cost-effective, with parameters comparable or superior to existing devices, showing promising potential for future wearable health monitoring devices.
Article
Engineering, Electrical & Electronic
Zhiqiang Zhao, Shuliang Pan, Maria Muzamil Memon, Qiong Liu, Tao Wang, Wanli Zhang
Summary: This paper introduces a molybdenum (Mo) based pressure sensor that can operate at temperatures higher than 300 degrees C. The sensor utilizes a 30 mu m thick pressure-sensitive film and 2 mu m thick gate Mo resistors to enhance pressure sensing. Finite element analysis (FEA) is used to design the sensor and analyze its performance under different temperatures and pressures. The results show that the sensor has excellent performance characteristics, but thermal mismatch and deviation of temperature coefficient of resistance (TCR) and initial resistivity (rho T-0) affect its thermal zero shift.
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
(2023)
Article
Engineering, Electrical & Electronic
Felix Jiang, Laura Schaller, Meguya Ryu, Junko Morikawa, Sven Ingebrandt, Xuan Thang Vu
Summary: This work presents a microfabricated chip device for measuring the in-plane thermal diffusivity of thin films using temperature wave analysis. The device consists of a suspended silicon nitride membrane with a micro-patterned electric Joule heater and temperature sensors. The device is sensitive to differences in thermal diffusivity resulting from changes in the thickness of Parylene C thin films.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Materials Science, Ceramics
Yamila S. Lagorio, Sebastian E. Gass, Edgardo R. Benavidez, Analia G. Tomba Martinez
Summary: This study evaluates the thermomechanical properties of three different MgO-C bricks and proposes an alternative thermal shock test. The results indicate that bricks with higher amounts of aluminum and graphite, bonded with resin, exhibit better response to thermal shock.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Kiho Song, Junhyeok Choi, Donghwi Cho, In-Hwan Lee, Changui Ahn
Summary: Thermal interface materials (TIMs) play a crucial role in heat dissipation and lifespan improvement of electronic devices. In this study, novel nanocomposites were developed using densely aligned MgO nanowire fillers and PDMS matrices, which exhibited enhanced thermal conductivity while maintaining mechanical flexibility. The MgO/PDMS composites also demonstrated adequate electrical insulating properties.
Article
Materials Science, Ceramics
Zehua Zhou, Xiaoyun Li, Qiufeng Huang, Zhonghua Deng, Zhuguang Liu, Jiquan Huang, Jian Chen, Wang Guo
Summary: By using CaO as a sintering additive, highly transparent MgO ceramic was prepared by hot isostatic pressing (HIP) technique of vacuum-sintered MgO compact. The densification process of MgO ceramic is significantly enhanced by doping 0.5 at% CaO at the vacuum-sintering temperature of 1100-1350 degrees C. The resulting ceramic exhibits high transmittance and thermal conductivity, making it a promising material for phosphor composite ceramics.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Djoudi Ourdani, Mohamed Belmeguenai, Mihai Gabor, Andrey Stashkevich, Yves Roussigne
Summary: In this article, a numerical study is conducted on the stabilization and eigenmodes of the skyrmion chiral spin texture in nanometric dots. The appropriate multilayer structure is identified through experimental characterization, and the eigenfrequency, eigenmode profile, and spectral density are calculated for different dot sizes. The optimal dot size for a feasible experiment is determined.
Article
Materials Science, Ceramics
Jianing Wang, Shujing Li, Yuanbing Li, Zhe Qiao
Summary: This study introduces BaZrO3 as a second phase combined with MgO to prepare magnesium matrix composites, which show better dimensional stability, cold compression strength, and thermal shock stability compared to single-phase MgO.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Nabil Challab, Yves Roussigne, Salim Mourad Cherif, Mihai Gabor, Mohamed Belmeguenai
Summary: The damping and interfacial Dzyaloshinskii-Moriya interaction (iDMI) induced by spin pumping were studied in Pt/Co2FeAl/MgO systems. The results showed that the iDMI strength and spin pumping efficiency are higher for CFA-based systems grown on MgO, suggesting that CFA grown on MgO could be a promising material for spin pumping and other spintronic applications.
Article
Chemistry, Multidisciplinary
Christopher Kagenda, Jae Wook Lee, Fida Hussain Memon, Faheem Ahmed, Anupama Samantasinghar, Muhammad Wasim Akhtar, Abdul Khalique, Kyung Hyun Choi
Summary: The study investigated the effect of MWCNTs and MgO on the thermal conductivity of silicone rubber composites, highlighting the linear relationship between thermal conductivity increment and MgO loading. Functionalized MWCNTs acted as bridging agents to improve compatibility and adhesion, leading to active conductive pathways within the composite. The addition of MWCNTs resulted in an eightfold increase in thermal conductivity compared to the neat elastomer, showing promising potential as a replacement for traditional thermal interface materials.
Article
Engineering, Electrical & Electronic
I. R. Chavez-Urbiola, R. Sanchez-Fraga, I. Mejia, J. A. Leon-Gil, J. Ponce-Hernandez, L. D. Velarde-Diaz, Jesus J. Alcantar-Pena
Summary: This paper presents a study on the performance and implementation of a clinical thermometer using thin-film resistive temperature detectors (RTD). The study shows that thermal treatment improves the localized defects on the film, reducing the variation in resistance for the produced sensors. The RTD sensor is designed with surface-mount technology and implemented as a contact thermometer prototype using a ratiometric circuit, achieving high accuracy.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Physical
Zhenchong Li, Jiapeng Zhao, Qiuxiang Zhu, Xiaowei Lv, Cuimei Cao, Xiaoyan Zhu, Lin Sun, Yong Peng, Wenjuan Cheng, Dongmei Jiang, Qingfeng Zhan
Summary: The study focused on epitaxial growth of FeRh films on PMN-PT substrates with the use of an MgO buffer layer to reduce lattice mismatch. Electric field applied on PMN-PT substrate significantly increased coercivity of FeRh film, displaying a butterfly type shape. FeRh film exhibited different types of multi-step hysteresis loops, and the critical transition temperature and magnetization were significantly affected by the inhibitory effect of remnant compressive strain after removing the electric effect.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Electrical & Electronic
Tonghui Li, Xiaofeng Duan, Kai Liu, Yongqing Huang
Summary: This paper proposes a hybrid genetic algorithm (HGA) to simplify the process of photodiode parameter extraction and compares its performance with other optimization algorithms. The results show that HGA has better performance in parameter fitting, convergence speed, and accuracy.
MICROELECTRONICS JOURNAL
(2024)
Article
Engineering, Electrical & Electronic
Prachuryya Subash Das, Deepjyoti Deb, Rupam Goswami, Santanu Sharma, Rajesh Saha
Summary: This article proposes the investigation of low power performance of a fin field-effect transistor (FinFET) with surrounding gates using a calibrated technology computer-aided design (TCAD) framework. The study explores the impact of core dimensions and gate edge suppression on the electrical parameters of the device. It is found that reducing the channel length by 35% improves the overall low power performance of the FinFET.
MICROELECTRONICS JOURNAL
(2024)
