Local structure around Fe ions on multiferroic Pb(Fe1/2Nb1/2)O3 ceramics probed by x-ray absorption spectroscopy

2012 ◽  
Vol 100 (17) ◽  
pp. 172907 ◽  
Author(s):  
A. Mesquita ◽  
B. M. Fraygola ◽  
V. R. Mastelaro ◽  
J. A. Eiras
Keyword(s):  
Absorption Spectroscopy ◽  
Local Structure ◽  
X Ray ◽  
X Ray Absorption ◽  
Fe Ions

Application of In Situ X-ray Absorption Spectroscopy to Study Dilute Chromium Ions in a Molten Chloride Salt

2019 ◽  
Author(s):  
Jisue Moon ◽  
Carter Abney ◽  
Dmitriy Dolzhnikov ◽  
James M. Kurley ◽  
Kevin A. Beyer ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Local Structure ◽  
Chloride Salt ◽  
X Ray ◽  
Molten Chloride ◽  
Stable Species ◽  
Higher Temperature ◽  
Cr Concentration ◽  
X Ray Absorption

The local structure of dilute CrCl<sub>3</sub> in a molten MgCl<sub>2</sub>:KCl salt was investigated by <i>in situ</i> x-ray absorption spectroscopy (XAS) at temperatures from room temperature to 800<sup>o</sup>C. This constitutes the first experiment where dilute Cr speciation is explored in a molten chloride salt, ostensibly due to the compounding challenges arising from a low Cr concentration in a matrix of heavy absorbers at extreme temperatures. CrCl<sub>3</sub> was confirmed to be the stable species between 200 and 500<sup>o</sup>C, while mobility of metal ions at higher temperature (>700<sup>o</sup>C) prevented confirmation of the local structure.

scholarly journals The Study of Magnetic Properties for Non-Magnetic Ions Doped BiFeO3

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4061
Author(s):  
Yongtao Li ◽  
Liqing Liu ◽  
Dehao Wang ◽  
Hongguang Zhang ◽  
Xuemin He ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Local Structure ◽  
Metal Ion ◽  
Single Phase ◽  
Sol Gel ◽  
X Ray ◽  
Co Doping ◽  
Magnetic Ions ◽  
X Ray Absorption ◽  
Fe Ions

BiFeO3 is considered as a single phase multiferroic. However, its magnetism is very weak. We study the magnetic properties of BiFeO3 by Cu and (Cu, Zn). Polycrystalline samples Bi(Fe0.95Cu0.05)O3 and BiFe0.95(Zn0.025Cu0.025)O3 are prepared by the sol-gel method. The magnetic properties of BiFe0.95(Zn0.025Cu0.025)O3 are greater than that of BiFeO3 and Bi(Fe0.95Cu0.05)O3. The analyses of X-ray absorption fine structure data show that the doped Cu atoms well occupy the sites of the Fe atoms. X-ray absorption near edge spectra data confirm that the valence state of Fe ions does not change. Cu and Zn metal ion co-doping has no impact on the local structure of the Fe and Bi atoms. The modification of magnetism by doping Zn can be understood by the view of the occupation site of non-magnetically active Zn2+.

Chemical State and Local Structure around Titanium Atoms in NaAlH4Doped with TiCl3Using X-ray Absorption Spectroscopy

2004 ◽  
Vol 108 (42) ◽  
pp. 16372-16376 ◽  
Author(s):  
Aline Léon ◽  
Oliver Kircher ◽  
Jörg Rothe ◽  
Maximilian Fichtner
Keyword(s):  
Absorption Spectroscopy ◽  
Local Structure ◽  
Chemical State ◽  
X Ray ◽  
State And Local ◽  
X Ray Absorption

Local structure of Fe in Fe-doped misfit-layered calcium cobaltite: An X-ray absorption spectroscopy study

2013 ◽  
Vol 204 ◽  
pp. 257-265 ◽  
Author(s):  
Natkrita Prasoetsopha ◽  
Supree Pinitsoontorn ◽  
Atipong Bootchanont ◽  
Pinit Kidkhunthod ◽  
Pornjuk Srepusharawoot ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Local Structure ◽  
Spectroscopy Study ◽  
X Ray ◽  
X Ray Absorption

Local structure ofBaBixPb1−xO3determined by x-ray-absorption spectroscopy

1991 ◽  
Vol 44 (13) ◽  
pp. 6961-6972 ◽  
Author(s):  
J. B. Boyce ◽  
F. G. Bridges ◽  
T. Claeson ◽  
T. H. Geballe ◽  
G. G. Li ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Local Structure ◽  
X Ray ◽  
X Ray Absorption

Local structure investigations of Sn and Mn doped in β-Ga2O3 by X-ray absorption spectroscopy

2021 ◽  
pp. 126223
Author(s):  
H. Arima-Osonoi ◽  
K. Yamazaki ◽  
R. Simura ◽  
T. Sugawara ◽  
K. Yubuta ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Local Structure ◽  
X Ray ◽  
Structure Investigations ◽  
X Ray Absorption ◽  
Mn Doped

Local Structure and Electronic States of Li(Mn2-xCox)O4Studied by X-ray Absorption Spectroscopy

2002 ◽  
Vol 49 (5) ◽  
pp. 841-850 ◽  
Author(s):  
C. H. Shen ◽  
R. S. Liu ◽  
L.-Y. Jang ◽  
J. F. Lee ◽  
J. M. Chen
Keyword(s):  
Absorption Spectroscopy ◽  
Local Structure ◽  
Electronic States ◽  
X Ray ◽  
X Ray Absorption
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