Dielectric characteristics of cation deficient TbMnO 3

Cong Lu; Yimin Cui

doi:10.1016/j.physb.2012.06.005

Dielectric characteristics of cation deficient TbMnO ₃

Cong Lu
, Yimin Cui^*

^*Corresponding author for this work

School of Physics

Beihang University

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

6 Scopus citations

Abstract

Cation deficient polycrystalline Tb _1-xMnO ₃ (x= 0.05, 0.10) and TbMn _1-yO ₃ (y =0.05, 0.10) samples were fabricated by conventional solid-state reaction. The complex dielectric properties of the cation deficient TbMnO ₃ were investigated as the function of temperature (77 K≤T≤350 K) and frequency (100 Hz≤ f≤ 200 kHz) separately. Compared to the parent TbMnO ₃, the cation deficient TbMnO ₃ samples exhibit not only high dielectric constant but also low dissipation factor. Nyquist plots of complex impedance show that the dielectric properties originate from two main relaxation sources, i.e. bulk contributions and grain boundary effects.

Original language	English
Pages (from-to)	3856-3860
Number of pages	5
Journal	Physica B: Condensed Matter
Volume	407
Issue number	18
DOIs	https://doi.org/10.1016/j.physb.2012.06.005
State	Published - 15 Sep 2012

Keywords

Cation deficient
Complex impedance
Dielectric characteristics
TbMnO

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10.1016/j.physb.2012.06.005

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title = "Dielectric characteristics of cation deficient TbMnO 3 ",

abstract = "Cation deficient polycrystalline Tb 1-xMnO 3 (x= 0.05, 0.10) and TbMn 1-yO 3 (y =0.05, 0.10) samples were fabricated by conventional solid-state reaction. The complex dielectric properties of the cation deficient TbMnO 3 were investigated as the function of temperature (77 K≤T≤350 K) and frequency (100 Hz≤ f≤ 200 kHz) separately. Compared to the parent TbMnO 3, the cation deficient TbMnO 3 samples exhibit not only high dielectric constant but also low dissipation factor. Nyquist plots of complex impedance show that the dielectric properties originate from two main relaxation sources, i.e. bulk contributions and grain boundary effects.",

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T1 - Dielectric characteristics of cation deficient TbMnO 3

AU - Lu, Cong

AU - Cui, Yimin

PY - 2012/9/15

Y1 - 2012/9/15

N2 - Cation deficient polycrystalline Tb 1-xMnO 3 (x= 0.05, 0.10) and TbMn 1-yO 3 (y =0.05, 0.10) samples were fabricated by conventional solid-state reaction. The complex dielectric properties of the cation deficient TbMnO 3 were investigated as the function of temperature (77 K≤T≤350 K) and frequency (100 Hz≤ f≤ 200 kHz) separately. Compared to the parent TbMnO 3, the cation deficient TbMnO 3 samples exhibit not only high dielectric constant but also low dissipation factor. Nyquist plots of complex impedance show that the dielectric properties originate from two main relaxation sources, i.e. bulk contributions and grain boundary effects.

AB - Cation deficient polycrystalline Tb 1-xMnO 3 (x= 0.05, 0.10) and TbMn 1-yO 3 (y =0.05, 0.10) samples were fabricated by conventional solid-state reaction. The complex dielectric properties of the cation deficient TbMnO 3 were investigated as the function of temperature (77 K≤T≤350 K) and frequency (100 Hz≤ f≤ 200 kHz) separately. Compared to the parent TbMnO 3, the cation deficient TbMnO 3 samples exhibit not only high dielectric constant but also low dissipation factor. Nyquist plots of complex impedance show that the dielectric properties originate from two main relaxation sources, i.e. bulk contributions and grain boundary effects.

KW - Cation deficient

KW - Complex impedance

KW - Dielectric characteristics

KW - TbMnO

UR - https://www.scopus.com/pages/publications/84863988371

U2 - 10.1016/j.physb.2012.06.005

DO - 10.1016/j.physb.2012.06.005

M3 - 文章

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SN - 0921-4526

VL - 407

SP - 3856

EP - 3860

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 18

ER -

Dielectric characteristics of cation deficient TbMnO ₃

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Keywords

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