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Magnetic properties and electronic structure of Gd 3 Cu 4 X 4 (X = Ge, Sn)
Author(s) -
Szytuła A.,
Jezierski A.,
Penc B.,
Wawrzyńska E.,
Zygmunt A.
Publication year - 2006
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200562506
Subject(s) - germanide , electronic structure , x ray photoelectron spectroscopy , crystallite , crystallography , ion , materials science , chemistry , analytical chemistry (journal) , germanium , nuclear magnetic resonance , physics , computational chemistry , metallurgy , silicon , organic chemistry , chromatography
Polycrystalline samples of Gd 3 Cu 4 X 4 (X=Ge, Sn) were investigated by means of magnetometry and XPS. Additionally, calculations of the electronic structures with the TB‐LMTO method were performed for both compounds. They were found to be antiferromagnets; the stannide – below 13 K and the germanide – below 11 K. The electronic structures determined from the photoemission spectra agree well with the results of the calculations. Analysis of the core levels indicates presence of the Cu +1 ions in both compounds. Besides, charge transfers from the Cu and Ge atoms, the latter only in Gd 3 Cu 4 Ge 4 , were detected. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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