AI Article Synopsis
- - Recent advancements in 2D van der Waals ferromagnetic materials like VSe show strong room temperature magnetism, making them ideal for spintronic devices and sensors.
- - A new magnetic sensor was developed using a single layer of VSe as a core, which operates by detecting changes in resonance frequency within an LC circuit influenced by external magnetic fields.
- - The sensor exhibits a high sensitivity of 16 × 10 Hz/Oe, indicating its potential for various magnetic sensing applications.
Article Abstract
Two-dimensional (2D) van der Waals ferromagnetic materials are emerging as promising candidates for applications in ultra-compact spintronic nanodevices, nanosensors, and information storage. Our recent discovery of the strong room temperature ferromagnetism in single layers of VSe grown on graphite or MoS substrate has opened new opportunities to explore these ultrathin magnets for such applications. In this paper, we present a new type of magnetic sensor that utilizes the single layer VSe film as a highly sensitive magnetic core. The sensor relies in changes in resonance frequency of the LC circuit composed of a soft ferromagnetic microwire coil that contains the ferromagnetic VSe film subject to applied DC magnetic fields. We define sensitivity as the slope of the characteristic curve of our sensor, df/dH, where f is the resonance frequency and H is the external magnetic field. The sensitivity of the sensor reaches a large value of 16 × 10 Hz/Oe, making it a potential candidate for a wide range of magnetic sensing applications.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7075862 | PMC |
| http://dx.doi.org/10.1038/s41598-020-61798-2 | DOI Listing |
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