Low-losses, highly tunable Ba0.6Sr0.4TiO3/MgO composite

被引：136

作者：

Chung, U. -Chan ^{[1
]}

Elissalde, C. ^{[1
]}

Maglione, M. ^{[1
]}

Estournes, C. ^{[2
]}

Pate, M. ^{[3
]}

Ganne, J. P. ^{[3
]}

机构：

[1] Univ Bordeaux 1, CNRS, ICMCB, F-33608 Pessac, France

[2] Univ Toulouse 3, CNRS Frittage Flash, CIRIMAT Plateforme Natl, F-31062 Toulouse, France

[3] Thales Res & Technol, F-91767 Palaiseau, France

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 04期

关键词：

D O I：

10.1063/1.2837621

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Spark plasma sintering (SPS) is an efficient tool to obtain highly densified ferroelectric-dielectric ceramic composites with clean interfaces and tunable properties. Dielectric MgO and ferroelectric Ba0.6Sr0.4TiO3 (BST) were combined in two-dimensional multilayer and three-dimensional random powders design. Their unmodified BST Curie temperature proves the suppression of interdiffusion while dielectric losses are below 0.5% and the tunability is 40% at room temperature. The composites and pure BST with similar densities (>95%) were obtained, owing reliable comparison of their dielectric properties. Such SPS ceramics can be used as experimental input for simulation and are potential candidates for high frequency applications. (c) 2008 American Institute of Physics.

引用

页数：3

共 21 条

[1] Dielectric tunability of BST:MgO composites prepared by using nano particles [J].

Agrawal, S ;

Guo, R ;

Agrawal, DK ;

Bhalla, AS ;

Neurgaonkar, RR ;

Murray, CB .

FERROELECTRICS LETTERS SECTION, 2004, 31 (5-6) :149-156

[2] Tunable BST:MgO dielectric composite by microwave sintering [J].

Agrawal, S ;

Guo, R ;

Agrawal, D ;

Bhalla, AS .

FERROELECTRICS, 2004, 306 :155-163

[3] Can the addition of a dielectric improve the figure of merit of a tunable material? [J].

Astafiev, KF ;

Sherman, VO ;

Tagantsev, AK ;

Setter, N .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2003, 23 (14) :2381-2386

[4] The effect of growth temperature on the nanostructure and dielectric response of BaTiO3 ferroelectric films [J].

Berge, John ;

Vorobiev, Andrei ;

Gevorgian, Spartak .

THIN SOLID FILMS, 2007, 515 (16) :6302-6308

[5] MgO-mixed Ba0.6Sr0.4TiO3 bulk ceramics and thin films for tunable microwave applications [J].

Chang, WT ;

Sengupta, L .

JOURNAL OF APPLIED PHYSICS, 2002, 92 (07) :3941-3946

[6] Tunability and leakage currents of (Ba,Sr)TiO3 ferroelectric ceramics with various additives [J].

Dedyk, A. I. ;

Nenasheva, E. A. ;

Kanareykin, A. D. ;

Pavlova, Ju. V. ;

Sinjukova, O. V. ;

Karmanenko, S. F. .

JOURNAL OF ELECTROCERAMICS, 2006, 17 (2-4) :433-437

[7] Tailoring dielectric properties of multilayer composites using spark plasma sintering [J].

Elissalde, Catherine ;

Maglione, Mario ;

Estournes, Claude .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2007, 90 (03) :973-976

[8] Three-dimensional polarization imaging of (Ba,Sr)TiO3:MgO composites -: art. no. 042903 [J].

Irvin, P ;

Levy, J ;

Guo, R ;

Bhalla, A .

APPLIED PHYSICS LETTERS, 2005, 86 (04) :042903-1

[9] Investigations of sol-gel-derived highly (100)-oriented Ba0.5Sr0.5TiO3:MgO composite thin films for phase-shifter applications [J].

Jain, M ;

Majumder, SB ;

Katiyar, RS ;

Bhalla, AS ;

Miranda, FA ;

Van Keuls, FW .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2005, 80 (03) :645-647

[10] Dielectric properties of sol-gel-derived MgO:Ba0.5Sr0.5TiO3 thin-film composites [J].

Jain, M ;

Majumder, SB ;

Katiyar, RS ;

Agrawal, DC ;

Bhalla, AS .

APPLIED PHYSICS LETTERS, 2002, 81 (17) :3212-3214

← 1 2 3 →