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Title: X-ray study of the ferroelectric [Ba{sub 0.6}Sr{sub 0.4}] [(YTa){sub 0.03}Ti{sub 0.94}]0[sub 3}.

Abstract

We have studied the system [Ba{sub 0.6}Sr{sub 0.4}] [(YTa){sub 0.03}Ti{sub 0.94}]O{sub 3}, as produced using two different sintering temperatures. It was shown by others that for a sample sintered at 1550 C the material is a relaxor, whereas for the same composition produced with sintering temperature of 1600 C the sample is a normal ferroelectric. We have employed analysis of x-ray diffraction peak broadening, Ti K edge x ray near edge spectroscopy, and extended x-ray absorption edge fine structure spectroscopy of Ta and Y sites in our study. We find that the 1550 C sinter sample has over double the lattice strain as does the 1600 C sample. For the lower temperature sinter material, both Ta and Y go to sites substitutional for Ti in the lattice, with a significant expansion (contraction) of the local perovskite structure about Y (Ta) dopants. Thus, with only three percent B site addition of Y and Ta dopants, there is a strain associated relaxor behavior produced in a bulk sample. For the higher temperature sinter specimen, there is a marked change in the average Y environment relative to the lower temperature sinter sample.

Authors:
; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
914934
Report Number(s):
ANL/XSD/JA-58449
Journal ID: ISSN 0163-1829; PRBMDO; TRN: US200817%%19
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Phys. Rev. B; Journal Volume: 74; Journal Issue: 174103 ; 2006
Country of Publication:
United States
Language:
ENGLISH
Subject:
36 MATERIALS SCIENCE; BARIUM OXIDES; STRONTIUM OXIDES; YTTRIUM OXIDES; TANTALUM OXIDES; FERROELECTRIC MATERIALS; SINTERING; X-RAY DIFFRACTION; X-RAY SPECTROSCOPY

Citation Formats

Shanthakumar, P., Balasubramanian, M., Pease, D.M., Frenkel, A.I., Potrepka, D.M., Kraizman, V., Budnick, J., Hines, W.A., X-Ray Science Division, Univ. of Conn., Yeshiva Univ., U.S. Army Research Lab., and Restov State Univ. X-ray study of the ferroelectric [Ba{sub 0.6}Sr{sub 0.4}] [(YTa){sub 0.03}Ti{sub 0.94}]0[sub 3}.. United States: N. p., 2006. Web. doi:10.1103/PhysRevB.74.174103.
Shanthakumar, P., Balasubramanian, M., Pease, D.M., Frenkel, A.I., Potrepka, D.M., Kraizman, V., Budnick, J., Hines, W.A., X-Ray Science Division, Univ. of Conn., Yeshiva Univ., U.S. Army Research Lab., & Restov State Univ. X-ray study of the ferroelectric [Ba{sub 0.6}Sr{sub 0.4}] [(YTa){sub 0.03}Ti{sub 0.94}]0[sub 3}.. United States. doi:10.1103/PhysRevB.74.174103.
Shanthakumar, P., Balasubramanian, M., Pease, D.M., Frenkel, A.I., Potrepka, D.M., Kraizman, V., Budnick, J., Hines, W.A., X-Ray Science Division, Univ. of Conn., Yeshiva Univ., U.S. Army Research Lab., and Restov State Univ. Sun . "X-ray study of the ferroelectric [Ba{sub 0.6}Sr{sub 0.4}] [(YTa){sub 0.03}Ti{sub 0.94}]0[sub 3}.". United States. doi:10.1103/PhysRevB.74.174103.
@article{osti_914934,
title = {X-ray study of the ferroelectric [Ba{sub 0.6}Sr{sub 0.4}] [(YTa){sub 0.03}Ti{sub 0.94}]0[sub 3}.},
author = {Shanthakumar, P. and Balasubramanian, M. and Pease, D.M. and Frenkel, A.I. and Potrepka, D.M. and Kraizman, V. and Budnick, J. and Hines, W.A. and X-Ray Science Division and Univ. of Conn. and Yeshiva Univ. and U.S. Army Research Lab. and Restov State Univ.},
abstractNote = {We have studied the system [Ba{sub 0.6}Sr{sub 0.4}] [(YTa){sub 0.03}Ti{sub 0.94}]O{sub 3}, as produced using two different sintering temperatures. It was shown by others that for a sample sintered at 1550 C the material is a relaxor, whereas for the same composition produced with sintering temperature of 1600 C the sample is a normal ferroelectric. We have employed analysis of x-ray diffraction peak broadening, Ti K edge x ray near edge spectroscopy, and extended x-ray absorption edge fine structure spectroscopy of Ta and Y sites in our study. We find that the 1550 C sinter sample has over double the lattice strain as does the 1600 C sample. For the lower temperature sinter material, both Ta and Y go to sites substitutional for Ti in the lattice, with a significant expansion (contraction) of the local perovskite structure about Y (Ta) dopants. Thus, with only three percent B site addition of Y and Ta dopants, there is a strain associated relaxor behavior produced in a bulk sample. For the higher temperature sinter specimen, there is a marked change in the average Y environment relative to the lower temperature sinter sample.},
doi = {10.1103/PhysRevB.74.174103},
journal = {Phys. Rev. B},
number = 174103 ; 2006,
volume = 74,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}