DocumentCode :
2499888
Title :
Broadband micro-brillouin scattering study of 0.7Pb(Sc1/2Nb1/2)O3-0.3PbTiO3 crystals
Author :
Kojima, S. ; Tsukada, S. ; Hidaka, Y. ; Bokov, A.A. ; Ye, Z. -G
Author_Institution :
Grad. Sch. of Pure & Appl. Sci., Univ. of Tsukuba, Tsukuba, Japan
fYear :
2010
fDate :
9-12 Aug. 2010
Firstpage :
1
Lastpage :
4
Abstract :
The critical behavior of a relaxor ferroelectric 0.7Pb(Sc1/2Nb1/2)O3-0.3PbTiO3 (PSN-0.3PT) crystal is studied by the broadband micro-Brillouin scattering. Remarkable and continuous elastic anomaly is observed in the vicinity of the Curie temperature TC=500 K. The integrate intensity of a central peak obeys the Curie-Weiss law. The relaxation length of strain fluctuations on nanometer scale, l =VτCP, increases markedly below the intermediate temperature T*=560 K, indicating the start of a rapid growth in the size of PNRs at T*.
Keywords :
Brillouin spectra; dielectric relaxation; ferroelectric Curie temperature; lead compounds; relaxor ferroelectrics; Curie temperature; Curie-Weiss law; Pb(Sc0.5Nb0.5)O3-PbTiO3; broadband microBrillouin scattering; relaxor ferroelectric crystal; strain fluctuations; Broadband communication; Crystals; Dynamics; Fluctuations; Scattering; Strain; Temperature dependence; PSN-xPT; micro-Brillouin scattering; polar nanoregions; relaxor ferroelectric; triplepoint;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Applications of Ferroelectrics (ISAF), 2010 IEEE International Symposium on the
Conference_Location :
Edinburgh
ISSN :
1099-4734
Print_ISBN :
978-1-4244-8190-3
Electronic_ISBN :
1099-4734
Type :
conf
DOI :
10.1109/ISAF.2010.5712252
Filename :
5712252
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2499888
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