Room-temperature multiferroic and magnetodielectric properties of SrTiO                         3                         /NiFe                         2                         O                         4                          composite ceramics

Hua Ke; Hongjun Zhang; Junjie Zhou; Dechang Jia; Yu Zhou

doi:10.1016/j.ceramint.2019.01.127

Room-temperature multiferroic and magnetodielectric properties of SrTiO ₃ /NiFe ₂ O ₄ composite ceramics

Hua Ke^*
, Hongjun Zhang
, Junjie Zhou
, Dechang Jia
, Yu Zhou

^*Corresponding author for this work

Harbin Institute of Technology
Harbin Institute of Technology

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

19 Scopus citations

Abstract

Various xNiFe ₂ O ₄ –(1-x)SrTiO ₃ (x = 0.04, 0.05, 0.1, 0.2) composite ceramics were prepared using sol–gel method and two-step calcination. The composite ceramics possessed no impurities and exhibited obvious magnetic properties (22.8 emu/g at x = 0.2). The magnetic second phase imposed strain effects on the SrTiO ₃ matrix to induce ferroelectricity. Strain values of (001) and (110) crystal planes were ~2.9% and ~1.3%. The tetragonal phase transition was evident in the Raman spectra. The remanent and maximum polarizations were 1.4 and 15.8 μC/cm ² , respectively, in ceramic with 10 mol% NiFe ₂ O ₄ . The dielectric permittivity was tuned with 1.6% change rate at 50 kHz and 10,000 Oe.

Original language	English
Pages (from-to)	8238-8242
Number of pages	5
Journal	Ceramics International
Volume	45
Issue number	7
DOIs	https://doi.org/10.1016/j.ceramint.2019.01.127
State	Published - May 2019

Keywords

Ferroelectricity
Magnetodielectric
Phase transition
SrTiO
Strains

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10.1016/j.ceramint.2019.01.127

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Ke, H., Zhang, H., Zhou, J., Jia, D., & Zhou, Y. (2019). Room-temperature multiferroic and magnetodielectric properties of SrTiO ₃ /NiFe ₂ O ₄ composite ceramics Ceramics International, 45(7), 8238-8242. https://doi.org/10.1016/j.ceramint.2019.01.127

Ke, Hua ; Zhang, Hongjun ; Zhou, Junjie et al. / Room-temperature multiferroic and magnetodielectric properties of SrTiO ₃ /NiFe ₂ O ₄ composite ceramics In: Ceramics International. 2019 ; Vol. 45, No. 7. pp. 8238-8242.

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title = " Room-temperature multiferroic and magnetodielectric properties of SrTiO 3 /NiFe 2 O 4 composite ceramics ",

abstract = " Various xNiFe 2 O 4 –(1-x)SrTiO 3 (x = 0.04, 0.05, 0.1, 0.2) composite ceramics were prepared using sol–gel method and two-step calcination. The composite ceramics possessed no impurities and exhibited obvious magnetic properties (22.8 emu/g at x = 0.2). The magnetic second phase imposed strain effects on the SrTiO 3 matrix to induce ferroelectricity. Strain values of (001) and (110) crystal planes were \textasciitilde{}2.9\% and \textasciitilde{}1.3\%. The tetragonal phase transition was evident in the Raman spectra. The remanent and maximum polarizations were 1.4 and 15.8 μC/cm 2 , respectively, in ceramic with 10 mol\% NiFe 2 O 4 . The dielectric permittivity was tuned with 1.6\% change rate at 50 kHz and 10,000 Oe.",

keywords = "Ferroelectricity, Magnetodielectric, Phase transition, SrTiO, Strains",

author = "Hua Ke and Hongjun Zhang and Junjie Zhou and Dechang Jia and Yu Zhou",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd and Techna Group S.r.l.",

year = "2019",

month = may,

doi = "10.1016/j.ceramint.2019.01.127",

language = "英语",

volume = "45",

pages = "8238--8242",

journal = "Ceramics International",

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}

Ke, H, Zhang, H, Zhou, J, Jia, D & Zhou, Y 2019, ' Room-temperature multiferroic and magnetodielectric properties of SrTiO ₃ /NiFe ₂ O ₄ composite ceramics ', Ceramics International, vol. 45, no. 7, pp. 8238-8242. https://doi.org/10.1016/j.ceramint.2019.01.127

Room-temperature multiferroic and magnetodielectric properties of SrTiO ₃ /NiFe ₂ O ₄ composite ceramics . / Ke, Hua; Zhang, Hongjun; Zhou, Junjie et al.
In: Ceramics International, Vol. 45, No. 7, 05.2019, p. 8238-8242.

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

TY - JOUR

T1 - Room-temperature multiferroic and magnetodielectric properties of SrTiO 3 /NiFe 2 O 4 composite ceramics

AU - Ke, Hua

AU - Zhang, Hongjun

AU - Zhou, Junjie

AU - Jia, Dechang

AU - Zhou, Yu

PY - 2019/5

Y1 - 2019/5

N2 - Various xNiFe 2 O 4 –(1-x)SrTiO 3 (x = 0.04, 0.05, 0.1, 0.2) composite ceramics were prepared using sol–gel method and two-step calcination. The composite ceramics possessed no impurities and exhibited obvious magnetic properties (22.8 emu/g at x = 0.2). The magnetic second phase imposed strain effects on the SrTiO 3 matrix to induce ferroelectricity. Strain values of (001) and (110) crystal planes were ~2.9% and ~1.3%. The tetragonal phase transition was evident in the Raman spectra. The remanent and maximum polarizations were 1.4 and 15.8 μC/cm 2 , respectively, in ceramic with 10 mol% NiFe 2 O 4 . The dielectric permittivity was tuned with 1.6% change rate at 50 kHz and 10,000 Oe.

AB - Various xNiFe 2 O 4 –(1-x)SrTiO 3 (x = 0.04, 0.05, 0.1, 0.2) composite ceramics were prepared using sol–gel method and two-step calcination. The composite ceramics possessed no impurities and exhibited obvious magnetic properties (22.8 emu/g at x = 0.2). The magnetic second phase imposed strain effects on the SrTiO 3 matrix to induce ferroelectricity. Strain values of (001) and (110) crystal planes were ~2.9% and ~1.3%. The tetragonal phase transition was evident in the Raman spectra. The remanent and maximum polarizations were 1.4 and 15.8 μC/cm 2 , respectively, in ceramic with 10 mol% NiFe 2 O 4 . The dielectric permittivity was tuned with 1.6% change rate at 50 kHz and 10,000 Oe.

KW - Ferroelectricity

KW - Magnetodielectric

KW - Phase transition

KW - SrTiO

KW - Strains

UR - https://www.scopus.com/pages/publications/85060580108

U2 - 10.1016/j.ceramint.2019.01.127

DO - 10.1016/j.ceramint.2019.01.127

M3 - 文章

AN - SCOPUS:85060580108

SN - 0272-8842

VL - 45

SP - 8238

EP - 8242

JO - Ceramics International

JF - Ceramics International

IS - 7

ER -

Ke H, Zhang H, Zhou J, Jia D , Zhou Y. Room-temperature multiferroic and magnetodielectric properties of SrTiO ₃ /NiFe ₂ O ₄ composite ceramics Ceramics International. 2019 May;45(7):8238-8242. doi: 10.1016/j.ceramint.2019.01.127

Room-temperature multiferroic and magnetodielectric properties of SrTiO ₃ /NiFe ₂ O ₄ composite ceramics

Abstract

Keywords

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