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arXiv · 2409.15976

OpenFMR: A low-cost open-source broadband ferromagnetic resonance spectrometer

Markus Meinert·Tiago de Oliveira Schneider·Shalini Sharma·Amir Khan
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Abstract

We describe a broadband ferromagnetic resonance spectrometer for scientific and educational applications with a frequency range up to 30 GHz. It is built with low-cost components available off-the-shelf and utilizes 3D printed parts for sample holders and support structures, and requires little assembly. A PCB design for the grounded coplanar waveguide (GCPW) is presented and analysed. We further include a software suite for command-line or script driven data acqusition, a graphical user interface, and a graphical data analysis program. The capabilities of the system design are demonstrated with measurements on ferromagnetic thin films with a thickness of 1 nm. All designs and scripts are published under the GNU GPL v3.0 license.

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Markus Meinert, Tiago de Oliveira Schneider, Shalini Sharma, Amir Khan. 2024-09-24. OpenFMR: A low-cost open-source broadband ferromagnetic resonance spectrometer. https://doi.org/10.1063/5.0241406

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