6533b7d1fe1ef96bd125cac1

RESEARCH PRODUCT

Formation of complex defects in Mn c Mg 1–c O and Ni c Mg 1–c O single solid solution

V. SkvortsovaNina Mironova-ulmaneU. Ulmanis

subject

CrystallographyAggregate (composite)Absorption spectroscopyImpurityChemistryAnalytical chemistryThermal treatmentIrradiationNeutron temperatureSolid solutionIon

description

The results of investigation of the fast neutron irradiation and thermal treatment on absorption spectra of single solid solution of MncMg1–cO, NicMg1–cO and MgO crystals are presented. It is shown that at impurity ion concentration larger than 0.1 mass.% a probability of formation of aggregate centers consisting of more than three F+- or F-centers is small. After thermal treatment of MncMg1–cO and NicMg1–cO single solid solution irradiated by fast neutrons additional wide bands are observed. We assume that these additional bands belong to complex centers of Mn3+-VMg and Ni3+-VMg. The mechanisms of bands formation are discussed. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

https://doi.org/10.1002/pssc.200460206