Abstract
A 63,65Cu NMR study was carried out on a series of Cu1–xPdxFeS2 compounds (x = 0–0.02) in a local magnetic field at 77 K. The spectra of the samples were taken. Their parameters were determined and the fields in the region of 63,65Cu nuclei were estimated. Asymmetric broadening of the NMR resonance lines was found along with a smoother decay in the high-frequency region, which may result from an increase in the amount of defects in the crystal lattice of the compound. These can be FeCu2+ antistructural defects, whose formation is attributed to the generation of the PdS phase in the chalcopyrite matrix with an increase in the nominal Pd content.
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