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Local Structure of the Impurity Site in Nd:LaF 3 by X‐Ray Fluorescence Holography
Author(s) -
Stellhorn Jens Rüdiger,
Hosokawa Shinya,
Happo Naohisa,
Hayashi Kouichi,
Matsushita Tomohiro,
Kawaguchi Noriaki,
Yanagida Takayuki
Publication year - 2020
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.202000310
Subject(s) - holography , dopant , scintillator , impurity , fluorescence , materials science , crystal structure , atom (system on chip) , local structure , lattice (music) , x ray , optics , crystal (programming language) , crystallography , doping , physics , chemistry , optoelectronics , detector , computer science , programming language , quantum mechanics , acoustics , embedded system
The local structure around the dopant atom in Nd(8 mol%):LaF 3 single‐crystal scintillator is analyzed by X‐ray fluorescence holography experiments in combination with a sparse modeling algorithm. The average local environment of Nd is reconstructed up to large distances of about 12 Å and confirms a substitution of La atoms with Nd with only small crystal lattice distortions. The experimental findings are substantiated by comparison with reference data from La holograms and with computationally generated holograms based on a model structure of the dopant site.