Dielectric Characteristics in BiFeO3 -Modified SrTiO3 Incipient Ferroelectric Ceramics
LIU Juan QIN Ying, LIU Xiao-Qiang, CHEN Xiang-Ming**
Laboratory of Dielectric Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027
Abstract ：We investigate the dielectric and ferroelectric properties of Sr1?x Bix 1?x Fex 3 solid solutions (x =0, 0.05, 0.1, 0.15 and 0.2) together with their structures. Through the analysis of Rietveld refinement of powder x-ray diffraction, a cubic structure in space group Pm 3 m is determined for all the compositions. An obvious dielectric relaxation peak differing from SrTiO3 is observed in the present ceramics. The peak temperature Tm increases with increasing x , and it approaches room temperature at x =0.2. The Vogel–Fulcher law and Curie–Weiss law fittings further confirm the relaxor ferroelectricity in the present ceramics.
出版日期: 2015-01-20
[1] Muller K A and Burkard H 1979 Phys. Rev. B 19 3593 1990 Rev. Mod. Phys. 62 993 1999 Solid State Commun. 110 611 1996 Phys. Rev. B 53 5047 2012 Phys. Rev. Lett. 109 187601 2012 Solid State Commun. 152 112 2000 Europhys. Lett. 50 688 1995 Phys. Rev. Lett. 74 2587 1994 Phys. Rev. B 50 601 2005 Appl. Phys. Lett. 86 172902 2004 Nature 430 758 1976 Phys. Rev. B 13 271 1968 Phys. Rev. Lett. 21 16 1999 Phys. Rev. Lett. 82 3540 2008 Phys. Rev. B 77 064116 1984 Phys. Rev. Lett. 52 2289 1996 Phys. Rev. B 54 3151 1970 J. Appl. Phys. 41 2828 1967 J. Chem. Phys. 47 1619 2009 Phys. B 404 171 2002 J. Phys.: Condens. Matter 14 2079 1992 Phys. Rev. B 46 8013 2002 J. Appl. Phys. 91 1487 1952 Phys. Rev. 86 118 1990 J. Am. Ceram. Soc. 73 3122 2008 J. Phys. Soc. Jpn. 77 064706 2012 J. Appl. Phys. 111 126101
[1]
.
[2]
.
[3]
CHEN Yun-Yun;SONG Yang;HE An-Zhi;LI Zhen-Hua. Dependence of Arc Plasma Dispersion Capability on its Temperature
[4]
HUANG Yu-Jian;HUANG Yue;DING Shi-Jin;ZHANG Wei;LIU Ran. Electrical Characterization of Metal--Insulator--Metal Capacitors with Atomic-Layer-Deposited HfO2 Dielectrics for Radio Frequency Integrated Circuit Application
[5]
XU Yan;HAN Gonghe;ZHENG Shaobai. Electric Conductivity Profile Determination in Tokamak with Modulated Weak Toroidal Electric Field
2015, Vol. 32 
