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Isotopic engineering of `zero‐matrix' samarium hexaboride: results of high‐resolution powder diffraction and X‐ray single‐crystal diffractometry studies
Author(s) -
Trunov V. A.,
Malyshev A. L.,
Chernyshov D. Yu.,
Kurbakov A. I.,
Korsukova M. M.,
Gurin V. N.,
Aslanov L. A.,
Chernyshev V. V.
Publication year - 1991
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889891001620
Subject(s) - samarium , neutron diffraction , crystallography , diffraction , materials science , resolution (logic) , single crystal , matrix (chemical analysis) , x ray crystallography , boron , crystal (programming language) , powder diffraction , crystal structure , analytical chemistry (journal) , chemistry , inorganic chemistry , physics , optics , organic chemistry , chromatography , artificial intelligence , computer science , composite material , programming language
Single crystals of the isotopic `zero‐matrix' samarium hexaboride ( 152 Sm 154 Sm 11 B 6 ) have been prepared by a modified variant of the high‐temperature solution growth method. The crystals were studied by high‐resolution powder (HRP) neutron diffraction and X‐ray single‐crystal diffractometry. The occurrence of vacancies at the boron site and complete occupancy of the metal site was established from structure refinements. The results obtained demonstrate that the use of the `zero‐matrix' effect provides considerably increased precision in determining the structural parameters of atoms in hexaborides when studied by neutron diffraction.