The lower symmetry electron-density distribution and the charge transport anisotropy in cubic dodecaboride LuB 12

High-quality single crystals of LuB are grown using the induction zone melting method. The x-ray data are collected at temperatures 293, 135, 95, 50 K. The crystal structure of LuB can be refined with record low R-factor in the cubic Fm [Formula: see text] m symmetry group despite reiterated observa...

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Published inJournal of physics. Condensed matter Vol. 30; no. 26; p. 265402
Main Authors Bolotina, Nadezhda B, Dudka, Alexander P, Khrykina, Olga N, Krasnorussky, Vladimir N, Shitsevalova, Natalya Yu, Filipov, Volodymyr B, Sluchanko, Nikolay E
Format Journal Article
LanguageEnglish
Published England 04.07.2018
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Summary:High-quality single crystals of LuB are grown using the induction zone melting method. The x-ray data are collected at temperatures 293, 135, 95, 50 K. The crystal structure of LuB can be refined with record low R-factor in the cubic Fm [Formula: see text] m symmetry group despite reiterated observations of the cubic symmetry distortions both in the unit-cell values and in the physical properties. A peculiar computing strategy is developed to resolve this contradiction. True symmetry of the electron-density distribution in LuB is proved to be much lower than cubic as a result, which correlates very accurately with anisotropy of transport properties of LuB .
ISSN:0953-8984
1361-648X
DOI:10.1088/1361-648X/aac742