مرکز منطقه ای اطلاع رساني علوم و فناوري - Dielectric investigations of 0.945(Bi0.5Na0.5) TiO3-0.055BaTiO3

DocumentCode :

1492567

Title :

Dielectric investigations of 0.945(Bi_0.5Na_0.5) TiO₃-0.055BaTiO₃

Author :

Greicius, Simonas ; Banys, Juras ; Zuo, Ruzhong ; Granzow, Torsten

Author_Institution :

Fac. of Phys., Vilnius Univ., Vilnius, Lithuania

Volume :

Issue :

fYear :

2009

fDate :

9/1/2009 12:00:00 AM

Firstpage :

1831

Lastpage :

1834

Abstract :

Dielectric properties of 0.945(Bi_0.5Na_0.5) TiO₃-0.055BaTiO₃(BNBT5.5) (a composition close to the rhombohedral- tetragonal morphotropic phase boundary) ceramics are studied. It is shown that BNBT5.5 is a relaxor with a characteristic relaxation time that follows Vogel-Fulcher´s law. The following Vogel-Fulcher parameters of the relaxation time were calculated: pi0 = (2.0 plusmn 2.4)middot10^-14 s, E/^kB = (1620 plusmn 270) K, T₀ = (262 plusmn 9) K.

Keywords :

barium compounds; bismuth compounds; carrier relaxation time; ceramics; dielectric properties; relaxor ferroelectrics; sodium compounds; (Bi_0.5Na_0.5)TiO₃-TiO₃; BNBT5.5; Vogel-Fulcher´s law; ceramics; dielectric properties; relaxation time; relaxor; rhombohedral-tetragonal morphotropic phase boundary; Ceramics; Dielectrics;

fLanguage :

English

Journal_Title :

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher :

ieee

ISSN :

0885-3010

Type :

jour

DOI :

10.1109/TUFFC.2009.1257

Filename :

5278431

Link To Document :

https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=1492567