Ternary arsenides RECo5As3 (RE = Y, Gd, Tb, Dy, Ho, Er)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F16%3A10327267" target="_blank" >RIV/00216208:11320/16:10327267 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jallcom.2016.05.224" target="_blank" >http://dx.doi.org/10.1016/j.jallcom.2016.05.224</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2016.05.224" target="_blank" >10.1016/j.jallcom.2016.05.224</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ternary arsenides RECo5As3 (RE = Y, Gd, Tb, Dy, Ho, Er)

Popis výsledku v původním jazyce

A series of new ternary arsenides RECo5As3 (RE = Y, Gd, Tb, Dy, Ho, Er) was synthesized from pure constituents. The crystal structure of TbCo5As3 and ErCo5As3 was determined by X-ray single-crystal diffraction, the structure of the other arsenides was refined from X-ray powder diffraction data. These compounds are isotypic with the YCo5P3 structure (space group Pnma, Pearson code oP36): a = 12.249(8), b = 3.803(5), c = 10.749(5)angstrom for GdCo5As3; a = 12.2350(10), b = 3.7896(2), c = 10.7290(7) angstrom, (R1 = 0.030 (wR2 = 0.038) for 828 reflections with I-o > 2 sigma(I-o)) for TbCo5As3; a = 12.225(2), b = 3.781(7), c = 10.715(5) angstrom for DyCo5As3; a = 12.214(4), b = 3.775(4), c = 10.709(1) angstrom for HoCo5As3; a = 12.2033(7), b = 3.7685(2), c = 10.7009(4) angstrom, (R1 = 0.039 (wR2 = 0.062) for 921 reflections with I-o > 2 sigma(I-o)) for ErCo5As3. The structure contains distorted trigonal prisms [AsRE2Co4] condensed together by edges from RE atoms to infinite zig-zag chains. TbCo5As3 was identified as having an antiferromagnetic ground state with the Neel temperature T-N = 55-60 K, which is obscured by spurious metallic Co.

Název v anglickém jazyce

Ternary arsenides RECo5As3 (RE = Y, Gd, Tb, Dy, Ho, Er)

Popis výsledku anglicky

A series of new ternary arsenides RECo5As3 (RE = Y, Gd, Tb, Dy, Ho, Er) was synthesized from pure constituents. The crystal structure of TbCo5As3 and ErCo5As3 was determined by X-ray single-crystal diffraction, the structure of the other arsenides was refined from X-ray powder diffraction data. These compounds are isotypic with the YCo5P3 structure (space group Pnma, Pearson code oP36): a = 12.249(8), b = 3.803(5), c = 10.749(5)angstrom for GdCo5As3; a = 12.2350(10), b = 3.7896(2), c = 10.7290(7) angstrom, (R1 = 0.030 (wR2 = 0.038) for 828 reflections with I-o > 2 sigma(I-o)) for TbCo5As3; a = 12.225(2), b = 3.781(7), c = 10.715(5) angstrom for DyCo5As3; a = 12.214(4), b = 3.775(4), c = 10.709(1) angstrom for HoCo5As3; a = 12.2033(7), b = 3.7685(2), c = 10.7009(4) angstrom, (R1 = 0.039 (wR2 = 0.062) for 921 reflections with I-o > 2 sigma(I-o)) for ErCo5As3. The structure contains distorted trigonal prisms [AsRE2Co4] condensed together by edges from RE atoms to infinite zig-zag chains. TbCo5As3 was identified as having an antiferromagnetic ground state with the Neel temperature T-N = 55-60 K, which is obscured by spurious metallic Co.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

—

Svazek periodika

685

Číslo periodika v rámci svazku

Listopad

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

6

Strana od-do

78-83

Kód UT WoS článku

000382222300012

EID výsledku v databázi Scopus

2-s2.0-84971426936