TY - JOUR
T1 - Noninteger Ce valency in Ce2Ni22C2.75
AU - Tran, Vinh Hung
AU - Flandorfer, Hans
AU - Godart, Claude
AU - Rogl, Peter Franz
N1 - Coden: JSSCB
Affiliations: Institut fur Physikalische Chemie, Universität Wien, Währingerstr. 42, A-1090 Wien, Austria
Adressen: Rogl, P.; Institut fur Physikalische Chemie; Universität Wien; Währingerstr. 42 A-1090 Wien, Austria; email: [email protected]
Source-File: PhysChemieScopus.csv
Import aus Scopus: 2-s2.0-0034753371
Importdatum: 21.12.2006 12:12:30
09.02.2010: Datenanforderung UNIVIS-DATEN-DAT.RA-2 (Import Sachbearbeiter)
PY - 2001
Y1 - 2001
N2 - It has been claimed earlier (J. Alloys Comp. 186, 223 (1992)) that Ce2Ni22C2.75 is ferromagnetic at room temperature. In this paper it is shown, with magnetic susceptibility and electrical resistivity measurements, that no ferromagnetic order exists in our Ce2Ni22C2.75 sample down to 1.7 K. Moreover, the temperature dependencies of both magnetic susceptibility and electrical resistivity agree well with the existing theoretical models for intermediate valence fluctuating compounds. This agreement together with X-ray absorption spectroscopy data obtained at two fixed temperatures, 10 and 300 K, clearly give evidence for a nonintegral valence state of Ce in Ce2Ni22C2.75 Π2001 Academic Press.
AB - It has been claimed earlier (J. Alloys Comp. 186, 223 (1992)) that Ce2Ni22C2.75 is ferromagnetic at room temperature. In this paper it is shown, with magnetic susceptibility and electrical resistivity measurements, that no ferromagnetic order exists in our Ce2Ni22C2.75 sample down to 1.7 K. Moreover, the temperature dependencies of both magnetic susceptibility and electrical resistivity agree well with the existing theoretical models for intermediate valence fluctuating compounds. This agreement together with X-ray absorption spectroscopy data obtained at two fixed temperatures, 10 and 300 K, clearly give evidence for a nonintegral valence state of Ce in Ce2Ni22C2.75 Π2001 Academic Press.
M3 - Article
SN - 0022-4596
VL - 161
SP - 63
EP - 66
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
IS - 1
ER -