Абсолютные значения зарядов атомов во всех узлах решетки YBa 2 Cu 3 O7 найдены с использованием мессбауэровских данных на изотопах 67 Cu(67 Zn), 67 Ga(67 Zn), данных ЯМР/ЯКР на изотопах 17 O, 137 Ba и расчетов решеточного градиента электрического поля. Эти заряды соответствуют дырке, находящейся преимущественно в подрешетке цепочечного кислорода.
The central shifts of the emission Mössbauer spectra on 67Cu(67Zn) impurity atoms in the crystal lattices of sodium and copper halides are determined, the relativistic Doppler shifts of the spectra are calculated, and, as a result, isomeric shifts are obtained, which are compared with the nature of the chemical bonding of zinc atoms with halogen atoms in the studied crystals. The values of the quadrupole interaction constants for impurity zinc centers in sodium halides are consistent with the results of calculating these values within the framework of the ionic model.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.