The effect of heterovalent P+5 ↔ Si+4 substitution on the microhardness of Ag7+x(P1-xSix)S6 single crystals. - Shender, I. O.; Pogodin, A. I.; Filep, M. J.; Malakhovska, T. O.; Kokhan, O. P.; Suslikov, L. M.; Bilanych, V. S.; Mariychuk, R. (Semiconductor Physics, Quantum Electronics & Optoelectronics, 2025)