Structure and dielectric properties of niobium-rich potassium lithium tantalate niobate single crystals

Jun Li; Yang Li; Zhongxiang Zhou; Ruyan Guo; Amar S. Bhalla

doi:10.1016/j.ceramint.2013.03.067

Structure and dielectric properties of niobium-rich potassium lithium tantalate niobate single crystals

Jun Li^*
, Yang Li
, Zhongxiang Zhou
, Ruyan Guo
, Amar S. Bhalla

^*Corresponding author for this work

University of Texas at San Antonio

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

4 Scopus citations

Abstract

The structure and lattice parameters of high quality niobium-rich potassium lithium tantalate niobate (K_0.95Li_0.05)(Ta _1-xNb_x)O₃ (x=0.44-0.66) single crystals were determined by the X-ray powder diffraction technique. Dielectric properties were studied in the temperature range from 20 to 500 K. The transition temperatures were determined, and the Curie temperatures adjusted between 330 K and 480 K through the suitable selection of Ta-to-Nb ratio. The degree of relaxation (γ) has been estimated using the modified Curie-Weiss law. The (K _0.95Li_0.05)(Ta_1-xNb_x)O₃ single crystals have also shown strong dc electric field dependent dielectric behavior, and high dielectric tunability (∼43%) for x=0.44.

Original language	English
Pages (from-to)	8537-8541
Number of pages	5
Journal	Ceramics International
Volume	39
Issue number	7
DOIs	https://doi.org/10.1016/j.ceramint.2013.03.067
State	Published - Sep 2013

Keywords

B. X-ray methods
C. Dielectric properties
D. Perovskites

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title = "Structure and dielectric properties of niobium-rich potassium lithium tantalate niobate single crystals",

abstract = "The structure and lattice parameters of high quality niobium-rich potassium lithium tantalate niobate (K0.95Li0.05)(Ta 1-xNbx)O3 (x=0.44-0.66) single crystals were determined by the X-ray powder diffraction technique. Dielectric properties were studied in the temperature range from 20 to 500 K. The transition temperatures were determined, and the Curie temperatures adjusted between 330 K and 480 K through the suitable selection of Ta-to-Nb ratio. The degree of relaxation (γ) has been estimated using the modified Curie-Weiss law. The (K 0.95Li0.05)(Ta1-xNbx)O3 single crystals have also shown strong dc electric field dependent dielectric behavior, and high dielectric tunability (∼43\%) for x=0.44.",

keywords = "B. X-ray methods, C. Dielectric properties, D. Perovskites",

author = "Jun Li and Yang Li and Zhongxiang Zhou and Ruyan Guo and Bhalla, \{Amar S.\}",

year = "2013",

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doi = "10.1016/j.ceramint.2013.03.067",

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volume = "39",

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journal = "Ceramics International",

issn = "0272-8842",

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}

TY - JOUR

T1 - Structure and dielectric properties of niobium-rich potassium lithium tantalate niobate single crystals

AU - Li, Jun

AU - Li, Yang

AU - Zhou, Zhongxiang

AU - Guo, Ruyan

AU - Bhalla, Amar S.

PY - 2013/9

Y1 - 2013/9

N2 - The structure and lattice parameters of high quality niobium-rich potassium lithium tantalate niobate (K0.95Li0.05)(Ta 1-xNbx)O3 (x=0.44-0.66) single crystals were determined by the X-ray powder diffraction technique. Dielectric properties were studied in the temperature range from 20 to 500 K. The transition temperatures were determined, and the Curie temperatures adjusted between 330 K and 480 K through the suitable selection of Ta-to-Nb ratio. The degree of relaxation (γ) has been estimated using the modified Curie-Weiss law. The (K 0.95Li0.05)(Ta1-xNbx)O3 single crystals have also shown strong dc electric field dependent dielectric behavior, and high dielectric tunability (∼43%) for x=0.44.

AB - The structure and lattice parameters of high quality niobium-rich potassium lithium tantalate niobate (K0.95Li0.05)(Ta 1-xNbx)O3 (x=0.44-0.66) single crystals were determined by the X-ray powder diffraction technique. Dielectric properties were studied in the temperature range from 20 to 500 K. The transition temperatures were determined, and the Curie temperatures adjusted between 330 K and 480 K through the suitable selection of Ta-to-Nb ratio. The degree of relaxation (γ) has been estimated using the modified Curie-Weiss law. The (K 0.95Li0.05)(Ta1-xNbx)O3 single crystals have also shown strong dc electric field dependent dielectric behavior, and high dielectric tunability (∼43%) for x=0.44.

KW - B. X-ray methods

KW - C. Dielectric properties

KW - D. Perovskites

UR - https://www.scopus.com/pages/publications/84880262112

U2 - 10.1016/j.ceramint.2013.03.067

DO - 10.1016/j.ceramint.2013.03.067

M3 - 文章

AN - SCOPUS:84880262112

SN - 0272-8842

VL - 39

SP - 8537

EP - 8541

JO - Ceramics International

JF - Ceramics International

IS - 7

ER -

Structure and dielectric properties of niobium-rich potassium lithium tantalate niobate single crystals

Abstract

Keywords

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