TY - GEN
T1 - Temperature dependence of XANES spectra for ATiO3, A 2TiO4 and TiO2 compounds with structural phase transitions
AU - Hashimoto, Takafumi
AU - Yoshiasa, Akira
AU - Okube, Maki
AU - Okudera, Hiroki
AU - Nakatsuka, Akihiko
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2007
Y1 - 2007
N2 - Ti K-edge X-ray absorption near edge structure (XANES) spectra of various titanates was measured at various temperatures. The composition, structure and temperature dependence of XANES spectra was investigated especially on the phase transition. Ti atoms are located in TiO6 octahedral sites for the all samples. Ti K-edge XANES spectra change largely with different compositions, while the temperature dependence of XANES spectra is small in each compound even if undergoing structural phase transition. For the temperature dependence, the pre-edge intensity has two types of behavior. One is decreasing as temperatures increase, the other is increasing. The former is for PbTiO 3 and BaTiO3 perovskite and the later is for CaTiO 3 and SrTiO3 perovskite, Mg2TiO4 spinel and TiO2 rutile.
AB - Ti K-edge X-ray absorption near edge structure (XANES) spectra of various titanates was measured at various temperatures. The composition, structure and temperature dependence of XANES spectra was investigated especially on the phase transition. Ti atoms are located in TiO6 octahedral sites for the all samples. Ti K-edge XANES spectra change largely with different compositions, while the temperature dependence of XANES spectra is small in each compound even if undergoing structural phase transition. For the temperature dependence, the pre-edge intensity has two types of behavior. One is decreasing as temperatures increase, the other is increasing. The former is for PbTiO 3 and BaTiO3 perovskite and the later is for CaTiO 3 and SrTiO3 perovskite, Mg2TiO4 spinel and TiO2 rutile.
KW - Pre-edge
KW - Titanate
KW - XANES
UR - http://www.scopus.com/inward/record.url?scp=33947411278&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33947411278&partnerID=8YFLogxK
U2 - 10.1063/1.2644548
DO - 10.1063/1.2644548
M3 - Conference contribution
AN - SCOPUS:33947411278
SN - 0735403848
SN - 9780735403840
T3 - AIP Conference Proceedings
SP - 428
EP - 430
BT - X-RAY ABSORPTION FINE STRUCTURE - XAFS13
T2 - X-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference
Y2 - 9 July 2006 through 14 July 2006
ER -