LaNi9Si4: CRYSTAL STRUCTURE AND ELECTRICAL PROPERTIES

The structure of LaNi9Si4 compound has been investigated by X-ray powder ans sing­le crystal method. This silicide crystalize in CeNi8.5Si4 structure type: space group I4 mcm, Pearson symbol tI56, а = 7.86415(6), с = 11.5101(1) Å, RB = 0.0653; а = 7.83933(17), с = 11.4472(5) Å, R =...

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Дата:2023
Автори: Belan, Bohdana, Pukas, Svitala, Dzevenko, Mariya, Manyako, Mykola, Kuzhel, Bohdan, Gladyshevskii, Roman
Формат: Стаття
Мова:English
Опубліковано: V.I.Vernadsky Institute of General and Inorganic Chemistry 2023
Онлайн доступ:https://ucj.org.ua/index.php/journal/article/view/550
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Назва журналу:Ukrainian Chemistry Journal

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Ukrainian Chemistry Journal
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spelling oai:ojs2.1444248.nisspano.web.hosting-test.net:article-5502023-08-10T12:23:05Z LaNi9Si4: CRYSTAL STRUCTURE AND ELECTRICAL PROPERTIES Belan, Bohdana Pukas, Svitala Dzevenko, Mariya Manyako, Mykola Kuzhel, Bohdan Gladyshevskii, Roman lanthanum, nickel, silicon, crystal structure, electrical resistivity. The structure of LaNi9Si4 compound has been investigated by X-ray powder ans sing­le crystal method. This silicide crystalize in CeNi8.5Si4 structure type: space group I4 mcm, Pearson symbol tI56, а = 7.86415(6), с = 11.5101(1) Å, RB = 0.0653; а = 7.83933(17), с = 11.4472(5) Å, R = 0.0220, wR = 0.0734 for X-ray single crystal data. Unlike the prototype CeNi8.5Si4.5, where the Wyckoff position 4d is occupied by mixture of Ni and Si atoms, in the structure of the ternary silicide LaNi9Si4, the atoms are ordered in all Wyckoff positions. Additionally, the electrical properties for the compound were investigated. The temperature dependence of the electrical resistivity exhibits metal behaviour (ρ0 = 121.60 μΩ∙cm, θD = 191 K, A = 2.2·10-9 μΩ∙m∙K-3).   V.I.Vernadsky Institute of General and Inorganic Chemistry 2023-06-26 Article Article Inorganic Chemistry Неорганическая химия Неорганічна хімія application/pdf https://ucj.org.ua/index.php/journal/article/view/550 10.33609/2708-129X.89.05.2023.3-12 Ukrainian Chemistry Journal; Vol. 89 No. 5 (2023): Ukrainian Chemistry Journal; 3-12 Украинский химический журнал; Том 89 № 5 (2023): Ukrainian Chemistry Journal; 3-12 Український хімічний журнал; Том 89 № 5 (2023): Ukrainian Chemistry Journal; 3-12 2708-129X 2708-1281 en https://ucj.org.ua/index.php/journal/article/view/550/280
institution Ukrainian Chemistry Journal
baseUrl_str
datestamp_date 2023-08-10T12:23:05Z
collection OJS
language English
topic_facet lanthanum
nickel
silicon
crystal structure
electrical resistivity.
format Article
author Belan, Bohdana
Pukas, Svitala
Dzevenko, Mariya
Manyako, Mykola
Kuzhel, Bohdan
Gladyshevskii, Roman
spellingShingle Belan, Bohdana
Pukas, Svitala
Dzevenko, Mariya
Manyako, Mykola
Kuzhel, Bohdan
Gladyshevskii, Roman
LaNi9Si4: CRYSTAL STRUCTURE AND ELECTRICAL PROPERTIES
author_facet Belan, Bohdana
Pukas, Svitala
Dzevenko, Mariya
Manyako, Mykola
Kuzhel, Bohdan
Gladyshevskii, Roman
author_sort Belan, Bohdana
title LaNi9Si4: CRYSTAL STRUCTURE AND ELECTRICAL PROPERTIES
title_short LaNi9Si4: CRYSTAL STRUCTURE AND ELECTRICAL PROPERTIES
title_full LaNi9Si4: CRYSTAL STRUCTURE AND ELECTRICAL PROPERTIES
title_fullStr LaNi9Si4: CRYSTAL STRUCTURE AND ELECTRICAL PROPERTIES
title_full_unstemmed LaNi9Si4: CRYSTAL STRUCTURE AND ELECTRICAL PROPERTIES
title_sort lani9si4: crystal structure and electrical properties
description The structure of LaNi9Si4 compound has been investigated by X-ray powder ans sing­le crystal method. This silicide crystalize in CeNi8.5Si4 structure type: space group I4 mcm, Pearson symbol tI56, а = 7.86415(6), с = 11.5101(1) Å, RB = 0.0653; а = 7.83933(17), с = 11.4472(5) Å, R = 0.0220, wR = 0.0734 for X-ray single crystal data. Unlike the prototype CeNi8.5Si4.5, where the Wyckoff position 4d is occupied by mixture of Ni and Si atoms, in the structure of the ternary silicide LaNi9Si4, the atoms are ordered in all Wyckoff positions. Additionally, the electrical properties for the compound were investigated. The temperature dependence of the electrical resistivity exhibits metal behaviour (ρ0 = 121.60 μΩ∙cm, θD = 191 K, A = 2.2·10-9 μΩ∙m∙K-3).  
publisher V.I.Vernadsky Institute of General and Inorganic Chemistry
publishDate 2023
url https://ucj.org.ua/index.php/journal/article/view/550
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first_indexed 2025-09-24T17:43:51Z
last_indexed 2025-09-24T17:43:51Z
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