Magnetic properties and electronic structures of intermediate valence systems CeRhSi2 and Ce2Rh3Si5

The crystal structures and the physical (magnetic, electrical transport and thermodynamic) properties of the ternary compounds CeRhSi(2) and Ce(2)Rh(3)Si(5) (orthorhombic CeNiSi(2)- and U(2)Co(3)Si(5)-type structures, respectively) were studied over wide ranges of temperature and magnetic field stre...

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Veröffentlicht in:Journal of physics. Condensed matter 2010-06, Vol.22 (21), p.215601-215601
Hauptverfasser: Kaczorowski, D, Pikul, A P, Burkhardt, U, Schmidt, M, Ślebarski, A, Szajek, A, Werwiński, M, Grin, Yu
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Sprache:eng
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Zusammenfassung:The crystal structures and the physical (magnetic, electrical transport and thermodynamic) properties of the ternary compounds CeRhSi(2) and Ce(2)Rh(3)Si(5) (orthorhombic CeNiSi(2)- and U(2)Co(3)Si(5)-type structures, respectively) were studied over wide ranges of temperature and magnetic field strength. The results revealed that both materials are valence fluctuating systems, in line with previous literature reports. Direct evidence for valence fluctuations was obtained by means of Ce L(III)-edge x-ray absorption spectroscopy and Ce 3d core-level x-ray photoelectron spectroscopy. The experimental data were confronted with the results of ab initio calculations of the electronic band structures in both compounds.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/22/21/215601