Abstract

The ferrimagnetic resonance linewidths in single crystals of Mn-doped Ba₂Zn₂Fe₁₂O₂₂ were measured as a function of frequency (0.01-40 GHz) and temperature (4-300 K). In addition, the saturation magnetization, g factor, and planar anisotropy fields were measured. The field linewidth ΔH appears to scale with frequency; however, the field linewidth as a function of temperature for the hexaferrite exhibits maxima. The temperature-dependent resonant field values were used to calculate the anisotropy field as a function of temperature. These measurements were performed in a frequency-swept slot-coplanar device at a fixed value of applied magnetic field and in a traditional ferrimagnetic resonance system.

Notes

Originally published in Journal of Applied Physics 67, 5524 (1990). DOI:10.1063/1.345872 (http://dx.doi.org/10.1063/1.345872).

Keywords

ferrimagnetic resonance, Mn-doped Ba₂Zn₂Fe₁₂O₂₂, saturation magnetization, g factor, planar anisotropy

Subject Categories

Thin films, Ferrimagnetism, Anisotropy, Magnetic fields

Disciplines

Electromagnetics and photonics

Publisher

American Institute of Physics

Publication Date

5-1-1990

Rights Information

Copyright 1990 American Institute of Physics.

Rights Holder

American Institute of Physics

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