Variable-range-hopping conductivity in high-k Ba(Fe0.5Nb 0.5)O3 ceramics

Shanming Ke; Peng Lin; Huiqing Fan; Haitao Huang; Xierong Zeng

doi:10.1063/1.4821042

Variable-range-hopping conductivity in high-k Ba(Fe_0.5Nb _0.5)O₃ ceramics

Shanming Ke
, Peng Lin
, Huiqing Fan
, Haitao Huang
, Xierong Zeng

School of Materials Sience and Engineering

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

35 Scopus citations

Abstract

The dielectric and transport properties of Ba(Fe_0.5Nb _0.5)O₃ ceramics have been investigated in a temperature range of 140-300 K and a frequency range of 1 Hz-10 MHz. The temperature dependence of bulk dc conductivity does not feature an Arrhenius behavior, but indicates a variable-range-hopping mechanism. The observed low temperature relaxation can be perfectly described by a polaronic model, which indicates that the dielectric relaxation is intimately related to the hopping motion caused by localized charge carriers.

Original language	English
Article number	104106
Journal	Journal of Applied Physics
Volume	114
Issue number	10
DOIs	https://doi.org/10.1063/1.4821042
State	Published - 14 Sep 2013

Access to Document

10.1063/1.4821042

Cite this

@article{feb25beb403447c2a37835622e0eaeec,

title = "Variable-range-hopping conductivity in high-k Ba(Fe0.5Nb 0.5)O3 ceramics",

abstract = "The dielectric and transport properties of Ba(Fe0.5Nb 0.5)O3 ceramics have been investigated in a temperature range of 140-300 K and a frequency range of 1 Hz-10 MHz. The temperature dependence of bulk dc conductivity does not feature an Arrhenius behavior, but indicates a variable-range-hopping mechanism. The observed low temperature relaxation can be perfectly described by a polaronic model, which indicates that the dielectric relaxation is intimately related to the hopping motion caused by localized charge carriers.",

author = "Shanming Ke and Peng Lin and Huiqing Fan and Haitao Huang and Xierong Zeng",

year = "2013",

month = sep,

day = "14",

doi = "10.1063/1.4821042",

language = "英语",

volume = "114",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

number = "10",

}

TY - JOUR

T1 - Variable-range-hopping conductivity in high-k Ba(Fe0.5Nb 0.5)O3 ceramics

AU - Ke, Shanming

AU - Lin, Peng

AU - Fan, Huiqing

AU - Huang, Haitao

AU - Zeng, Xierong

PY - 2013/9/14

Y1 - 2013/9/14

N2 - The dielectric and transport properties of Ba(Fe0.5Nb 0.5)O3 ceramics have been investigated in a temperature range of 140-300 K and a frequency range of 1 Hz-10 MHz. The temperature dependence of bulk dc conductivity does not feature an Arrhenius behavior, but indicates a variable-range-hopping mechanism. The observed low temperature relaxation can be perfectly described by a polaronic model, which indicates that the dielectric relaxation is intimately related to the hopping motion caused by localized charge carriers.

AB - The dielectric and transport properties of Ba(Fe0.5Nb 0.5)O3 ceramics have been investigated in a temperature range of 140-300 K and a frequency range of 1 Hz-10 MHz. The temperature dependence of bulk dc conductivity does not feature an Arrhenius behavior, but indicates a variable-range-hopping mechanism. The observed low temperature relaxation can be perfectly described by a polaronic model, which indicates that the dielectric relaxation is intimately related to the hopping motion caused by localized charge carriers.

UR - https://www.scopus.com/pages/publications/84884944631

U2 - 10.1063/1.4821042

DO - 10.1063/1.4821042

M3 - 文章

AN - SCOPUS:84884944631

SN - 0021-8979

VL - 114

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 10

M1 - 104106

ER -

Variable-range-hopping conductivity in high-k Ba(Fe_0.5Nb _0.5)O₃ ceramics

Abstract

Access to Document

Other files and links

Fingerprint

Cite this