提高SiC JFET中基于EDMR的磁力测量的自旋依赖再组合电流的电读数,使用并联 (去调制) 技术进行测量
Andreas Gottscholl1, Hannes Kraus2, Thomas Aichinger3
1NASA Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr, Pasadena, CA, 91104, USA. andreas.p.gottscholl@jpl.nasa.gov.
Scientific reports
|June 20, 2024
概括
我们开发了一种用于电磁共振 (EDMR) 传感器的新技术,以显著提高灵敏度. 这一进步克服了噪声限制,使得基于芯片的量子设备能够进行超灵敏的磁力测量.
科学领域:
- 量子传感和计量学 量子传感和计量学
- 固态物理学和自旋电子学
- 先进的传感器技术技术的传感器技术.
背景情况:
- 电检测磁共振 (EDMR) 是小型设备中旋转读取的关键技术.
- 目前的EDMR方法面临着灵敏度的限制,这阻碍了它们在量子磁力测量中的应用.
- 1/f噪声和背景信号是实现高精度EDMR测量的重大挑战.
研究的目的:
- 为了提高基于EDMR的量子磁力仪的灵敏度.
- 为了克服现有的EDMR读取技术的局限性.
- 在环境条件下实现基于芯片的,无光学超灵敏磁力测量.
主要方法:
- 实施一项联合 (去) 调制技术,将磁场和射频调制结合起来.
- 使用更高的调节频率来减轻1/f噪声.
- 整合自我校准能力和背景信号消除策略.
主要成果:
- 实现了背景信号的显著减少,大小为三级.
- 通过更高的解调频率有效避免1/f噪声,表现出增强的灵敏度.
- 验证了新的双重调制技术的自我校准能力.
结论:
- 开发的双重 (去) 调制技术代表了EDMR传感器的重大进步.
- 这种方法显著提高了灵敏度,降低了噪声,使得EDMR适合超灵敏磁力测量.
- 该技术为实际的基于芯片的量子传感器铺平了道路,这些量子传感器在没有光学组件的情况下运行.
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