Dielectric tunability of BST:MgO composites prepared by using nano particles

Shashnk Agrawal; R. Guo; D. K. Agrawal; A. S. Bhalla; R. R. Neurgaonkar; C. B. Murray

doi:10.1080/07315170490901472

Dielectric tunability of BST:MgO composites prepared by using nano particles

Shashnk Agrawal, R. Guo, D. K. Agrawal, A. S. Bhalla, R. R. Neurgaonkar, C. B. Murray

Materials Research Institute (MRI)

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

The dielectric properties of ferroelectric Ba_0.5Sr _0.5TiO₃ and non-ferroelectric MgO composites synthesized by using nano particles are investigated for tunable microwave applications. Dielectric properties are studied in the temperature range of -250°C to 100°C, with and without an electrical field. The dielectric tunability is ∼50% for BST:MgO composites under the field of 80 KV/cm. at around the Curie peak. The use of nano particle sizes of materials considerably reduces dielectric losses and shows comparatively high K-factor values in the resulted composites. The ferroelectric phase is well connected and thus enhances the overall dielectric properties of the composites.

Original language	English (US)
Pages (from-to)	149-156
Number of pages	8
Journal	Ferroelectrics, Letters Section
Volume	31
Issue number	5-6
DOIs	https://doi.org/10.1080/07315170490901472
State	Published - 2004

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1080/07315170490901472

Cite this

@article{cbeddeb9e9ce499db1580edf586fd0c1,

title = "Dielectric tunability of BST:MgO composites prepared by using nano particles",

abstract = "The dielectric properties of ferroelectric Ba0.5Sr 0.5TiO3 and non-ferroelectric MgO composites synthesized by using nano particles are investigated for tunable microwave applications. Dielectric properties are studied in the temperature range of -250°C to 100°C, with and without an electrical field. The dielectric tunability is ∼50% for BST:MgO composites under the field of 80 KV/cm. at around the Curie peak. The use of nano particle sizes of materials considerably reduces dielectric losses and shows comparatively high K-factor values in the resulted composites. The ferroelectric phase is well connected and thus enhances the overall dielectric properties of the composites.",

author = "Shashnk Agrawal and R. Guo and Agrawal, {D. K.} and Bhalla, {A. S.} and Neurgaonkar, {R. R.} and Murray, {C. B.}",

note = "Funding Information: The work is supported by the DARPA—FAME and Meta Materials grants.",

year = "2004",

doi = "10.1080/07315170490901472",

language = "English (US)",

volume = "31",

pages = "149--156",

journal = "Ferroelectrics, Letters Section",

issn = "0731-5171",

publisher = "Taylor and Francis Ltd.",

number = "5-6",

}

TY - JOUR

T1 - Dielectric tunability of BST:MgO composites prepared by using nano particles

AU - Agrawal, Shashnk

AU - Guo, R.

AU - Agrawal, D. K.

AU - Bhalla, A. S.

AU - Neurgaonkar, R. R.

AU - Murray, C. B.

N1 - Funding Information: The work is supported by the DARPA—FAME and Meta Materials grants.

PY - 2004

Y1 - 2004

N2 - The dielectric properties of ferroelectric Ba0.5Sr 0.5TiO3 and non-ferroelectric MgO composites synthesized by using nano particles are investigated for tunable microwave applications. Dielectric properties are studied in the temperature range of -250°C to 100°C, with and without an electrical field. The dielectric tunability is ∼50% for BST:MgO composites under the field of 80 KV/cm. at around the Curie peak. The use of nano particle sizes of materials considerably reduces dielectric losses and shows comparatively high K-factor values in the resulted composites. The ferroelectric phase is well connected and thus enhances the overall dielectric properties of the composites.

AB - The dielectric properties of ferroelectric Ba0.5Sr 0.5TiO3 and non-ferroelectric MgO composites synthesized by using nano particles are investigated for tunable microwave applications. Dielectric properties are studied in the temperature range of -250°C to 100°C, with and without an electrical field. The dielectric tunability is ∼50% for BST:MgO composites under the field of 80 KV/cm. at around the Curie peak. The use of nano particle sizes of materials considerably reduces dielectric losses and shows comparatively high K-factor values in the resulted composites. The ferroelectric phase is well connected and thus enhances the overall dielectric properties of the composites.

UR - http://www.scopus.com/inward/record.url?scp=11844291297&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=11844291297&partnerID=8YFLogxK

U2 - 10.1080/07315170490901472

DO - 10.1080/07315170490901472

M3 - Article

AN - SCOPUS:11844291297

SN - 0731-5171

VL - 31

SP - 149

EP - 156

JO - Ferroelectrics, Letters Section

JF - Ferroelectrics, Letters Section

IS - 5-6

ER -

Dielectric tunability of BST:MgO composites prepared by using nano particles

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this