01-03-2022 | ELECTRICAL AND MAGNETIC PROPERTIES
The Shape of Electron Paramagnetic Resonance Lines of Pr0.7Ca0.15Ba0.15MnO3 Manganite
Published in: Physics of Metals and Metallography | Issue 3/2022
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In Pr0.7Ca0.15Ba0.15MnO3 manganite, the spin dynamics is studied by the method of electron paramagnetic resonance (EPR). The analysis showed that at the temperature ТL ≈Tmin, which corresponds to the minimal width of the EPR line, the shape of lines of absorption spectra is perfectly described by a single Lorentzian. At other temperatures (not ТL), the absorption lines of the EPR spectra are asymmetric, which is caused by their exchange broadening at Т < ТL or hopping conductivity at T > ТL.
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