TY - JOUR
T1 - Eu valence state and valence transition in Eu(Pd1-xPtx)2Si2
AU - Mitsuda, A.
AU - Wada, H.
AU - Shiga, M.
AU - Tanaka, T.
PY - 2000/6/19
Y1 - 2000/6/19
N2 - We examine the temperature dependence of the Eu valence and lattice parameters for Eu(Pd1-x Ptx)2Si2 by means of x-ray absorption spectroscopy (XAS) and x-ray diffraction, respectively. Strong temperature dependence of the Eu valence was observed for Eu(Pd1-xPtx)2Si2. Combining the Moessbauer effect data and XAS results, we estimated the Eu valence as a function of temperature. It is shown that the Eu valence in the ground state shows very little sensitivity to x for 0≤x≤0.10. In the temperature dependence of the Eu valence, the compound with x = 0.05 undergoes a continuous valence change, while the one with x = 0.15 shows a first-order valence transition. The factors determining the Eu valence in Eu(Pd1-xPtx)2Si2 are discussed.
AB - We examine the temperature dependence of the Eu valence and lattice parameters for Eu(Pd1-x Ptx)2Si2 by means of x-ray absorption spectroscopy (XAS) and x-ray diffraction, respectively. Strong temperature dependence of the Eu valence was observed for Eu(Pd1-xPtx)2Si2. Combining the Moessbauer effect data and XAS results, we estimated the Eu valence as a function of temperature. It is shown that the Eu valence in the ground state shows very little sensitivity to x for 0≤x≤0.10. In the temperature dependence of the Eu valence, the compound with x = 0.05 undergoes a continuous valence change, while the one with x = 0.15 shows a first-order valence transition. The factors determining the Eu valence in Eu(Pd1-xPtx)2Si2 are discussed.
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U2 - 10.1088/0953-8984/12/24/317
DO - 10.1088/0953-8984/12/24/317
M3 - Article
AN - SCOPUS:0033727075
VL - 12
SP - 5287
EP - 5296
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
SN - 0953-8984
IS - 24
ER -