XAFS study of relaxor Pb(In $_{0.5}$ Nb $_{0.5}$ )O

Yoneda, Yasuhiro ; Yasuda, Naohiko*

Pb $_{III}$ -edge absorption spectra of ordered and disordered Pb(In $_{0.5}$ Nb $_{0.5}$ )O (PIN) were analyzed. The absorption edges of both the ordered and disordered PIN were shifted depending on the thermal condition of post-annealing. A clear edge shift was observed between the ordered and disordered PIN crystals. The local environments of the Pb atoms were different in these PIN crystals. This edge shift can be interpreted by introducing disarrangement of B-site atoms. Disordering of B-site atoms has not only an effect on the local bond distribution but also an effect on the long-range order crystal structure.

Language	:	English
Journal	:	Transactions of the Materials Research Society of Japan
Volume	:	33
Number	:	1
Pages	:	p.15 - 18
Publication Year/Month	:	2008/03
Meeting title	:	第18回日本MRS学術シンポジウム
Held date	:	2007/12
Location (city)	:	東京
Location (country)	:	日本
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Registration No. : BB20072765
JAEA Abstracts No. : 36000980
Paper Submission No. : 4292

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XAFS study of relaxor Pb(InNb)O

XAFS study of relaxor Pb(In $_{0.5}$ Nb $_{0.5}$ )O