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The influence of radiation reaction damping on the ESR lineshape of non-Lorentzian lines and magnetostatic modes

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Abstract

In the quasi-two-dimensional ferromagnet (C2H5NH3)2CuCl4 magnetostatic modes have been observed in the temperature rangeT=4.2...20 K by a shorted waveguide technique. The spectra differ significantly from recently reported ESR measurements in a cavity. The discrepancy can be explained by radiation damping effects which do not only broaden a line but can also essentially affect the lineshape. A simple experimental method is proposed to test the non-Lorentzian character of ESR lineshapes.

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Project of “Sonderforschungsbereich Festkörperspektroskopie Darmstadt/Frankfurt”, financed by special funds of the “Deutsche Forschungsgemeinschaft”.

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Benner, H. The influence of radiation reaction damping on the ESR lineshape of non-Lorentzian lines and magnetostatic modes. Appl. Phys. 13, 141–146 (1977). https://doi.org/10.1007/BF00882472

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PACS Code

  • 76