( . piézo - ), , . . , , - . . , . ., . (. ). . : MnF2, CoF2 a-Fe2O3. Ji skl, . . Ji = Liklskl. - Lik ( CoF2) 2×10-3 ×2/ (~ 2×10-12 ×2/). - , . . () .

.: . ., , ., 1971, . 758.

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