Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
and Fe
in LuFe
O
Agui, Akane; Kawai, Masahiro*; Nagata, Tomoko*; Mizumaki, Masaichiro*; Ikeda, Naoshi*
no journal, ,
We have measured the resonant Fe L2,3 emission spectra of LuFeO. The charge order temperature is Tco = 320 K and the and arrange alternately in the charge ordered phase. We found that the spectrum at T 
Tco could not be explained only by the simple sum of spectra from the 
and 
sites. We assumed that when an Fe 2p state was excited, the electron transited not only to the on-state Fe 3d state but also to the neighboring Fe 3d state. This intermediate interference made the new spectra shape.
SiInami, Toshiya; Ishii, Kenji; Jarrige, I.*; Yoshida, Masahiro*; Mitsuda, Akihiro*
no journal, ,
X-ray absorption spectroscopy at the lanthanoid 
- and 
-edges is a versatile tool for investigating valency, spatial symmetry and hybridization of the 
electrons. A disadvantage of this technique, however, is the very short penetration length of soft X-rays in solid materials. X-ray Raman scattering (XRS) is an alternative method to obtain absorption spectra. High energy incident X-rays transfer a part of their energy to various excitations and the obtained energy-loss spectrum corresponds to an absorption spectrum. Because of the high penetration depth of hard X-rays, this technique is truly bulk sensitive. Here we report on a feasibility study of XRS experiments applied to a mixed-valent f-electron system. The test sample was EuPdSi, which exhibits a sharp and large valence transition around 150 K. The obtained XRS spectra showed clear absorption features at the - and -edges. However, we did not detect any difference between the spectra at 10 K and 200 K.