Abstract
Two fundamentally different non-contact techniques are used to observe electronic paramagnetic resonance (EPR) in a two-dimensional system based on the ZnO/MgZnO heterotransition. Spin resonance is detected in the first geometry for the transmission signal in a broadband coplanar waveguide applied to the surface of a sample. In the second, EPR manifests in a change of the power of a radio wave signal passing through a pair of T-shaped emitter/detector antennas having capacitive coupling with a two-dimensional channel. Results are compared to data measured using standard means of transport EPR detection.
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Funding
This work was performed as part of a State Task for the Russian Academy of Sciences’ Institute of Solid State Physics. The authors are grateful to J. Falson for providing the heterostructures used in this work.
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Translated by V. Vetrov
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Khisameeva, A.R., Shchepetilnikov, A.V., Nefyodov, Y.A. et al. Observing Spin Resonance in Two-Dimensional Conductivity Electrons in Contactless Geometry. Bull. Russ. Acad. Sci. Phys. 85, 123–126 (2021). https://doi.org/10.3103/S1062873821020143
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DOI: https://doi.org/10.3103/S1062873821020143