Abstract
We report on measurements of width and intensity of EPR lines corresponding to V4+ ion, which is located at the tetrahedral site of NaCa2Mg2V3O12 garnet. At 77 K the strange dependence of line-width on nuclear quantum number is studied. Results obtained are explained on the basis of inhomogsneous broadening of the resonance lines. Above liquid nitrogen temperature the spin-lattice relaxation contributes to the line-width. On the other hand, in the temperature interval 50-40 K saturation becomes important, so that at about 10–20 K signal becomes too weak to be detected.
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We would like to thank Dr. Z.Šimša for the electrical measurements, Dr. S.Kálavský from Komenský University Bratislava, who brought our attention to the mosaic structure as a possible source of line-width in the system studied.
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Havlíček, V., Novák, P. EPR line-width intensity of V4+ ion in NaCa2Mg2V3O12 garnet. Czech J Phys 24, 188–202 (1974). https://doi.org/10.1007/BF01587120
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DOI: https://doi.org/10.1007/BF01587120