Novel barium strontium titanate Ba0.5Sr0.5TiO3/MgO thin film composites for tunable microwave devices

被引：41

作者：

Jain, M

Majumder, SB

Katiyar, RS

Bhalla, AS

机构：

[1] Univ Puerto Rico, Fac Nat Sci, Dept Phys, San Juan, PR 00931 USA

[2] Penn State Univ, Mat Res Lab, University Pk, PA 16802 USA

来源：

MATERIALS LETTERS | 2003年 / 57卷 / 26-27期

关键词：

solgel; dielectric constant; composite thin film; multilayer; paraelectric; microwave devices;

D O I：

10.1016/S0167-577X(03)00296-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Multilayer deposition of Ba0.5Sr0.5TiO3 (BST50) and MgO thin films is demonstrated to be a novel approach to synthesize BST50/MgO composite thin films. In this work, we report the effect of MgO insertion layer on the structural, physical, and dielectric properties of the BST film. Various observations suggest that the multilayer film sample resulted in a composite with 3-0 connectivity having micro-MgO single crystals dispersed in a three-dimensionally connected BST matrix. For the BST50/MgO composite film, considerable reduction in the dielectric loss values was observed, which renders them very attractive for the tunable microwave device applications. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：4232 / 4236

页数：5

共 10 条

[1] Novel BST:MgTiO3 composites for frequency agile applications. [J].

Alberta, EF ;

Guo, R ;

Bhalla, AS .

FERROELECTRICS, 2002, 268 :169-174

[2]

DOOLITTLE LR, 1985, NUCL INSTRUM METH B, V9, P334

[3] Modelling of thin-film HTS/ferroelectric interdigital capacitors [J].

Gevorgian, S ;

Carlsson, E ;

Rudner, S ;

Wernlund, LD ;

Wang, X ;

Helmersson, U .

IEE PROCEEDINGS-MICROWAVES ANTENNAS AND PROPAGATION, 1996, 143 (05) :397-401

[4] Sol-gel derived grain oriented barium strontium titanate thin films for phase shifter applications [J].

Majumder, SB ;

Jain, M ;

Martinez, A ;

Katiyar, RS ;

Van Keuls, FW ;

Miranda, FA .

JOURNAL OF APPLIED PHYSICS, 2001, 90 (02) :896-903

[5]

Nagai T, 1998, J AM CERAM SOC, V81, P425, DOI 10.1111/j.1151-2916.1998.tb02352.x

[6] Dielectric properties of Pb(Zr,Ti)O3-dispersed MgO nanocomposite [J].

Nagai, T ;

Hwang, HJ ;

Yasuoka, M ;

Sando, M ;

Niihara, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1998, 37 (6A) :3377-3381

[7]

Newnham R.E., 1986, FERROELECTRICS, V68, P1, DOI DOI 10.1080/00150198608238734

[8]

RIVKIN TV, 2001, MAT RES SOC S P E, V656

[9]

Synowczynski J., 1998, INTEGR FERROELECTR, V22, P341

[10] Formation of micro-crystals on the (100) surface of SrTiO3 at elevated temperatures [J].

Szot, K ;

Speier, W ;

Breuer, U ;

Meyer, R ;

Szade, J ;

Waser, R .

SURFACE SCIENCE, 2000, 460 (1-3) :112-128

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