High sensitivity direct magnetic field detection based metrology for ultra-thin magnetic films and Li-ion cells.

IF 1.3 4区 工程技术 Q3 INSTRUMENTS & INSTRUMENTATION
Som Shekhar Sharma, K K George Kurian, Dipak Maity, Preeti Yadav, Tharangattu N Narayanan, G Rajalakshmi
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引用次数: 0

Abstract

Ultra-low magnetic field sensing is emerging as a tool for materials' diagnostics, particularly for the operando studies of electrochemical systems. A magnetic metrology system having the capability of sensing fields as low as ∼1.88 pT has been setup for such studies using a commercial atomic magnetometer. The magnetometer setup is isolated from environmental perturbations, such as mechanical vibrations, electrical noises, and ambient magnetic fields, in order to measure small signals from the samples under study. Magnetic field measurements on ferromagnetic (permalloy, Ni0.8Fe0.2) thin films, monolayers of MoS2, vanadium doped MoS2, and lithium electro-deposited copper electrodes are performed to demonstrate the sensitivity of the setup. Magnetic field scanning of commercial Li-ion cells has also been performed using this magnetic metrology method, indicating the scope of the setup for operando diagnostics.

基于高灵敏度直接磁场检测的超薄磁性薄膜和锂离子电池计量方法。
超低磁场传感正在成为材料诊断的一种工具,特别是在电化学系统的操作研究中。利用商用原子磁强计,为这类研究建立了具有低至~ 1.88 pT感应磁场能力的磁计量系统。该磁力计设置与环境扰动隔离,如机械振动、电噪声和环境磁场,以便测量所研究样品的小信号。在铁磁(坡莫合金,Ni0.8Fe0.2)薄膜,MoS2单层,钒掺杂MoS2和锂电沉积铜电极上进行了磁场测量,以证明该装置的灵敏度。商用锂离子电池的磁场扫描也已使用这种磁计量方法进行,表明了operando诊断设置的范围。
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
Review of Scientific Instruments
Review of Scientific Instruments 工程技术-物理:应用
CiteScore
3.00
自引率
12.50%
发文量
758
审稿时长
2.6 months
期刊介绍: Review of Scientific Instruments, is committed to the publication of advances in scientific instruments, apparatuses, and techniques. RSI seeks to meet the needs of engineers and scientists in physics, chemistry, and the life sciences.
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