Work

OpenFMR: An open-source broadband ferromagnetic resonance spectrometer

Year: 2025

Type: article

Abstract: We describe a broadband ferromagnetic resonance spectrometer for scientific and educational applications with a frequency range of up to 30 GHz. It is built with components available off-the-shelf, 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 analyzed. We further include a software suite for command-line or script driven data acquisition, 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.

Source: Review of Scientific Instruments

DOI: 10.1063/5.0241406

Authors: Tiago de Oliveira Schneider, Shalini Sharma, Amir Khan, Markus Meinert

Institution: Technische Universität Darmstadt

Language: English

Topic: Magnetic properties of thin films

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funder: Deutsche Forschungsgemeinschaft

Awards: Magnetron CoSputtering System, Variables HallMesssystem, Spintronische THzEmitter mit uniaxialer und unidirektionaler magnetischer Anisotropie für magnetfeldfreien Betrieb und elektrische THzPhasenUmschaltung