Studenyak, I.P.; Stefanovich, V.O.; Bilanchuk, V.V.; Panko, V.V.; Studenyak, Ya.I.
(Functional Materials, 2004)
Raman scattering and optical absorption edge have been studied in Cu₆+δPS₅Br crystals obtained at various technological conditions providing increased copper content and deviation from stoichiometry. The most noticeable ...