Dielectric relaxation in Ba-based layered perovskites
作者： A. L. Kholkin , M. Avdeev , M. E. V. Costa , J. L. Baptista , S. N. Dorogovtsev
DOI: 10.1063/1.1386616
关键词: Ceramic 、 Permittivity 、 Ferroelectricity 、 Relaxation (NMR) 、 Phase transition 、 Materials science 、 Condensed matter physics 、 Dielectric 、 Ferroelectric ceramics 、 Piezoelectricity
摘要: Ferroelectric materials with Bi-layered structure such as SrBi2Ta2O9 and SrBi2Nb2O9 are now intensively investigated in view of their applications nonvolatile computer memories high-temperature piezoelectric transducers. When Sr2+ is substituted Ba2+, a significant disorder induced the material exhibits broadening phase transition. Such essential for since it allows achieving smooth temperature characteristics while maintaining high dielectric properties. In this work, stoichiometric dense BaBi2Nb2O9 (BBN) ceramics sintered using mixed oxide route. Dielectric ferroelectric properties broad range temperatures frequencies. Strong dispersion complex relative permittivity observed including typical relaxor features shift maximum frequency relaxation time spectrum decreasing temperature. The obeys the...
scitation.org
harvard.edu
aip.org
sci-hub.se 参考文章(14)
A. L. Kholkin, K. G. Brooks, N. Setter, Electromechanical properties of SrBi2Ta2O9 thin films Applied Physics Letters. ,vol. 71, pp. 2044- 2046 ,(1997) , 10.1063/1.119782
Qi Tan, Dwight Viehland, ac-field-dependent structure-property relationships in La-modified lead zirconate titanate: Induced relaxor behavior and domain breakdown in soft ferroelectrics. Physical Review B. ,vol. 53, pp. 14103- 14111 ,(1996) , 10.1103/PHYSREVB.53.14103
Tadashi Takenaka, Koichiro Sakata, Grain Orientation and Electrical Properties of Hot-Forged Bi4Ti3O12 Ceramics Japanese Journal of Applied Physics. ,vol. 19, pp. 31- 39 ,(1980) , 10.1143/JJAP.19.31
A E Glazounov, A J Bell, A K Tagantsev, Relaxors as superparaelectrics with distributions of the local transition temperature Journal of Physics: Condensed Matter. ,vol. 7, pp. 4145- 4168 ,(1995) , 10.1088/0953-8984/7/21/013
Susan M. Blake, Mark J. Falconer, Mark McCreedy, Philip Lightfoot, Cation disorder in ferroelectric Aurivillius phases of the typeBi2ANb2O9(A=Ba, Sr, Ca) Journal of Materials Chemistry. ,vol. 7, pp. 1609- 1613 ,(1997) , 10.1039/A608059F
Dwight Viehland, S. J. Jang, L. Eric Cross, Manfred Wuttig, Freezing of the polarization fluctuations in lead magnesium niobate relaxors Journal of Applied Physics. ,vol. 68, pp. 2916- 2921 ,(1990) , 10.1063/1.346425
S Kamba, V Bovtun, J Petzelt, I Rychetsky, R Mizaras, A Brilingas, J Banys, J Grigas, M Kosec, Dielectric dispersion of the relaxor PLZT ceramics in the frequency range 20 Hz-100 THz Journal of Physics: Condensed Matter. ,vol. 12, pp. 497- 519 ,(2000) , 10.1088/0953-8984/12/4/309
C. A-Paz de Araujo, J. D. Cuchiaro, L. D. McMillan, M. C. Scott, J. F. Scott, Fatigue-free ferroelectric capacitors with platinum electrodes Nature. ,vol. 374, pp. 627- 629 ,(1995) , 10.1038/374627A0
Brendan J. Kennedy, Ismunandar, Effect of temperature on cation disorder in ABi2Nb2O9 (A=Sr, Ba) Journal of Materials Chemistry. ,vol. 9, pp. 541- 544 ,(1999) , 10.1039/A806760K
S. N. Dorogovtsev, N. K. Yushin, Acoustical properties of disordered ferroelectrics Ferroelectrics. ,vol. 112, pp. 27- 44 ,(1990) , 10.1080/00150199008012783