Normal vibrations of atomic groups in the sillenite lattice. I. $\mathrm{O}_{(1)}\mathrm{Bi}_{3}$ and $\mathrm{O}_{(2)}\mathrm{Bi}_{3}$ groups

Yu. G. Zaretskii, Yu. I. Ukhanov, Yu. V. Shmartsev

Ioffe Physico-Technical Institute USSR Academy of Sciences, Leningrad

UDC: 535.343.2

Received: 02.10.1990