Open AccessСуперсверхтонкая структура спектров ЭПР примесных ионов Nd-=SUP=-3+-=/SUP=- во флюорите CaF-=SUB=-2-=/SUB=-
Author(s) -
Л.К. Аминов,
М.Р. Гафуров,
I. N. Kurkin,
Б. З. Малкин,
А. А. Родионов
Publication year - 2018
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2018.05.45785.337
Subject(s) - tetragonal crystal system , ion , spectral line , crystal (programming language) , electron paramagnetic resonance , analytical chemistry (journal) , chemistry , crystal structure , fluorine , crystallography , materials science , nuclear magnetic resonance , physics , organic chemistry , chromatography , astronomy , computer science , programming language
EPR spectra of a CaF_2 single crystal that was grown from melt containing a small addition of NdF_3 were studied. Signals corresponding to tetragonal centers of Nd^3+ ions and cubic centers of Er3+ and Yb3+ ions were found. Superhyperfine structure (SHFS) in the spectra of the Nd^3+ ions was observed for the first time in this crystal; parameters of the superhyperfine interaction of the Nd^3+ ions with the nearest nine fluorine ions were determined. The dependence of the resolution of the Nd^3+ EPR spectrum SHFS on the incident microwave power at the temperature of T ≈ 6 K was studied. Obtained results are discussed and compared with the literature data.