[Kovove materialy - Metallic materials]
    Fri - March 29, 2024 - 14:15 No. of hits : 1736713 ISSN 1338-4252 (online) ISSN 0023-432X (printed)
© Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovak Republic

VOLUME 36 (1998), Issue 1

Co magnetism and magnetovolume phenomena in RE(Co1-xSix)2 compounds
CUONG, T. D., HAVELA, L., SECHOVSKY, V., ARNOLD, Z., KAMARAD, J.
vol. 36 (1998), no. 1, pp. 53 - 60

Abstract
Results of magnetic and dilatometric studies of the RE(Co1-xSix)2 compounds with RE = Nd, Ho and Er for x ≤ 0.15 are presented. The lattice cell volume of the Ho and Er compounds is invariable with respect to x, whereas the Nd(Co1-xSix)2 lattice expands by ~7% when x increases up to 0.15. Si substitutions for Co (x ≤ 0.075) induce a dramatic increase of Curie temperature (TC) both in the Ho and Er compounds. Slight reduction of (TC) is observed in Nd analogues. Co magnetism in these materials is reflected in pronounced magnetovolume phenomena below TC. Results are discussed in terms of expected changes of electronic structure and their influence on the hierarchy of exchange interactions and formation of the Co moment.

Key words
magnetic and dilatometric studies, RE(Co1-xSix)2 compounds, electronic structure

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Full title of this journal is bilingual: Kovové materiály - Metallic Materials.
The official abbreviation in accordance with JCR ISI is Kovove Mater.


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