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Structural and physical properties of the U.sub.9./sub.Fe.sub.7./sub.Ge.sub.24./sub. uranium germanide
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SYSNO ASEP 0368500 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Structural and physical properties of the U9Fe7Ge24 uranium germanide Author(s) Henriques, M.S. (PT)
Berthebaud, D. (FR)
Pereira, L.C.J. (PT)
Lopes, E.B. (PT)
Branco, M.B.C. (PT)
Noël, H. (FR)
Tougait, O. (FR)
Šantavá, Eva (FZU-D) RID, ORCID
Havela, L. (CZ)
Carvalho, P.A. (PT)
Goncalves, A.P. (PT)Source Title Intermetallics. - : Elsevier - ISSN 0966-9795
Roč. 19, č. 7 (2011), s. 841-847Number of pages 7 s. Language eng - English Country GB - United Kingdom Keywords ternary alloy system ; x-ray ; crystal structure ; electrical resistance and thermopower ; magnetisation Subject RIV BM - Solid Matter Physics ; Magnetism CEZ AV0Z10100520 - FZU-D (2005-2011) UT WOS 000291190900003 DOI 10.1016/j.intermet.2010.12.004 Annotation A new ternary compound, U(9)Fe(7)Ge(24), prep. by arc-melting and heating. X-ray diffraction, magnetization, specific heat and electrical transport measurements.Tetragonal structure, 14/mmm. 3 U, 8 Ge , and 3 Fe sites, stacks of infinite chains along the a and b axis. Strong interactions U and Ge can be predicted. Magnetic and specific heat measurements do’nt show any magnetic transition. Curie Weiss behaviour with a negative paramagnetic Curie temp. theta p = -94 K and reduced effective mag. moment of mu(eff) = 2.13 mu(B) / U indicate the compound is rather far from onset of magnetism, presumably due to a strong hybridisation of the 5f and ligand states. Electrical transport shows a metallic behaviour. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2012
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