1:2 Cation order in a(Li 1/3(Nb, Ta) 2/3)O 3 microwave perovskites

Albina Borisevich; Peter K. Davies

doi:10.1063/1.1649821

1:2 Cation order in a(Li _1/3(Nb, Ta) _2/3)O ₃ microwave perovskites

Albina Borisevich
, Peter K. Davies

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

9 Scopus citations

Abstract

The cation order in family of perovskites with stoichiometry A(Li _1/3(Na,Ta) _2/3)O ₃ was investigated. These compounds were sintered to high density at 1350°C having dielectric constant in range 25-30, microwave quality as high as 26000 and negative temperature coefficient of resonant frequency. The cation order in (Ca _2/3La _1/3)(Li _1/3Ta _2/3)O ₃ having 1:1 ordered structure gave no observation of 1:2 polymorph. The comparison of large charge difference between ions involved in microwave perovskites to other 1:2 ordered microwave perovskites reflected higher stability of order which was stable to decomposing/melting temperature.

Original language	English
Pages (from-to)	1347-1349
Number of pages	3
Journal	Applied Physics Letters
Volume	84
Issue number	8
DOIs	https://doi.org/10.1063/1.1649821
State	Published - Feb 23 2004
Externally published	Yes

Access to Document

10.1063/1.1649821

Cite this

@article{a344a3f3f56b4b68a578b2f8624b1795,

title = "1:2 Cation order in a(Li 1/3(Nb, Ta) 2/3)O 3 microwave perovskites",

abstract = "The cation order in family of perovskites with stoichiometry A(Li 1/3(Na,Ta) 2/3)O 3 was investigated. These compounds were sintered to high density at 1350°C having dielectric constant in range 25-30, microwave quality as high as 26000 and negative temperature coefficient of resonant frequency. The cation order in (Ca 2/3La 1/3)(Li 1/3Ta 2/3)O 3 having 1:1 ordered structure gave no observation of 1:2 polymorph. The comparison of large charge difference between ions involved in microwave perovskites to other 1:2 ordered microwave perovskites reflected higher stability of order which was stable to decomposing/melting temperature.",

author = "Albina Borisevich and Davies, \{Peter K.\}",

year = "2004",

month = feb,

day = "23",

doi = "10.1063/1.1649821",

language = "English",

volume = "84",

pages = "1347--1349",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "8",

}

TY - JOUR

T1 - 1:2 Cation order in a(Li 1/3(Nb, Ta) 2/3)O 3 microwave perovskites

AU - Borisevich, Albina

AU - Davies, Peter K.

PY - 2004/2/23

Y1 - 2004/2/23

N2 - The cation order in family of perovskites with stoichiometry A(Li 1/3(Na,Ta) 2/3)O 3 was investigated. These compounds were sintered to high density at 1350°C having dielectric constant in range 25-30, microwave quality as high as 26000 and negative temperature coefficient of resonant frequency. The cation order in (Ca 2/3La 1/3)(Li 1/3Ta 2/3)O 3 having 1:1 ordered structure gave no observation of 1:2 polymorph. The comparison of large charge difference between ions involved in microwave perovskites to other 1:2 ordered microwave perovskites reflected higher stability of order which was stable to decomposing/melting temperature.

AB - The cation order in family of perovskites with stoichiometry A(Li 1/3(Na,Ta) 2/3)O 3 was investigated. These compounds were sintered to high density at 1350°C having dielectric constant in range 25-30, microwave quality as high as 26000 and negative temperature coefficient of resonant frequency. The cation order in (Ca 2/3La 1/3)(Li 1/3Ta 2/3)O 3 having 1:1 ordered structure gave no observation of 1:2 polymorph. The comparison of large charge difference between ions involved in microwave perovskites to other 1:2 ordered microwave perovskites reflected higher stability of order which was stable to decomposing/melting temperature.

UR - https://www.scopus.com/pages/publications/1642281913

U2 - 10.1063/1.1649821

DO - 10.1063/1.1649821

M3 - Article

AN - SCOPUS:1642281913

SN - 0003-6951

VL - 84

SP - 1347

EP - 1349

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 8

ER -

1:2 Cation order in a(Li _1/3(Nb, Ta) _2/3)O ₃ microwave perovskites

Abstract

Access to Document

Other files and links

Fingerprint

Cite this