Open AccessПарамагнитные центры хрома в кристаллах Y-=SUB=-2-=/SUB=-SiO-=SUB=-5-=/SUB=- и Sc-=SUB=-2-=/SUB=-SiO-=SUB=-5-=/SUB=-
Author(s) -
V. A. Vazhenin,
А. П. Потапов,
G. S. Shakurov,
А. В. Фокин,
М.Ю. Артёмов,
V. A. Isaev
Publication year - 2018
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2018.10.46530.054
Subject(s) - scandium , yttrium , chromium , triclinic crystal system , electron paramagnetic resonance , silicate , ion , crystallography , materials science , doping , chemistry , inorganic chemistry , crystal structure , nuclear magnetic resonance , physics , metallurgy , optoelectronics , organic chemistry , oxide
The EPR spectrum of yttrium and scandium silicate single crystals doped with chromium has been studied at various frequencies. Y_2SiO_5 has one triclinic Cr^3+ center, while the Sc_2SiO_5 crystals demonstrate two nonequivalent centers. The spin Hamiltonian parameters of these centers have been determined. These centers are found to be tricharged chromium ions localized in the yttrium and scandium positions.