Optical, ferroelectric and magnetic properties of multiferroelectric BiFeO3-(K0.5Na0.5)0.4(Sr0.6Ba0.4)0.8Nb2O6thin films

Y. B. Yao; Chee Leung Mak

doi:10.1016/j.jallcom.2013.10.077

Optical, ferroelectric and magnetic properties of multiferroelectric BiFeO₃-(K_0.5Na_0.5)_0.4(Sr_0.6Ba_0.4)_0.8Nb₂O₆thin films

Y. B. Yao, Chee Leung Mak

Research output: Journal article publication › Journal article › Academic research › peer-review

5 Citations (Scopus)

Abstract

Multiferroic BiFeO3-(K0.5Na0.5)0.4(Sr0.6Ba0.4)0.8Nb2O6(BFO-KNSBN) trilayer thin films, were epitaxially grown on MgO(0 0 1) and SrTiO3(0 0 1) by using pulsed laser deposition (PLD). Their ferroelectric, magnetic, dielectric and optical properties were investigated. It was found that both ferroelectric polarization and dielectric constant of the films were enhanced by introducing KNSBN as a barrier layer. Meanwhile, ferromagnetism of BFO was maintained. More interestingly, a double hysteresis magnetic loop was observed in the KNSBN-BFO-KNSBN trilayer films, where exchange bias and secondary phase in the BFO layer played crucial roles. Interactions between adjacent layers were revealed by temperature-dependent Raman spectroscopic measurements.

Original language	English
Pages (from-to)	448-455
Number of pages	8
Journal	Journal of Alloys and Compounds
Volume	586
DOIs	https://doi.org/10.1016/j.jallcom.2013.10.077
Publication status	Published - 1 Jan 2014

Keywords

Ferroelectric properties
Magnetic properties
Multiferroic thin films
Optical properties

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

More information

10.1016/j.jallcom.2013.10.077

Cite this

@article{3698def7164e46a48edf12ba04af9c4e,

title = "Optical, ferroelectric and magnetic properties of multiferroelectric BiFeO3-(K0.5Na0.5)0.4(Sr0.6Ba0.4)0.8Nb2O6thin films",

abstract = "Multiferroic BiFeO3-(K0.5Na0.5)0.4(Sr0.6Ba0.4)0.8Nb2O6(BFO-KNSBN) trilayer thin films, were epitaxially grown on MgO(0 0 1) and SrTiO3(0 0 1) by using pulsed laser deposition (PLD). Their ferroelectric, magnetic, dielectric and optical properties were investigated. It was found that both ferroelectric polarization and dielectric constant of the films were enhanced by introducing KNSBN as a barrier layer. Meanwhile, ferromagnetism of BFO was maintained. More interestingly, a double hysteresis magnetic loop was observed in the KNSBN-BFO-KNSBN trilayer films, where exchange bias and secondary phase in the BFO layer played crucial roles. Interactions between adjacent layers were revealed by temperature-dependent Raman spectroscopic measurements.",

keywords = "Ferroelectric properties, Magnetic properties, Multiferroic thin films, Optical properties",

author = "Yao, {Y. B.} and Mak, {Chee Leung}",

year = "2014",

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doi = "10.1016/j.jallcom.2013.10.077",

language = "English",

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journal = "Journal of Alloys and Compounds",

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TY - JOUR

T1 - Optical, ferroelectric and magnetic properties of multiferroelectric BiFeO3-(K0.5Na0.5)0.4(Sr0.6Ba0.4)0.8Nb2O6thin films

AU - Yao, Y. B.

AU - Mak, Chee Leung

PY - 2014/1/1

Y1 - 2014/1/1

N2 - Multiferroic BiFeO3-(K0.5Na0.5)0.4(Sr0.6Ba0.4)0.8Nb2O6(BFO-KNSBN) trilayer thin films, were epitaxially grown on MgO(0 0 1) and SrTiO3(0 0 1) by using pulsed laser deposition (PLD). Their ferroelectric, magnetic, dielectric and optical properties were investigated. It was found that both ferroelectric polarization and dielectric constant of the films were enhanced by introducing KNSBN as a barrier layer. Meanwhile, ferromagnetism of BFO was maintained. More interestingly, a double hysteresis magnetic loop was observed in the KNSBN-BFO-KNSBN trilayer films, where exchange bias and secondary phase in the BFO layer played crucial roles. Interactions between adjacent layers were revealed by temperature-dependent Raman spectroscopic measurements.

AB - Multiferroic BiFeO3-(K0.5Na0.5)0.4(Sr0.6Ba0.4)0.8Nb2O6(BFO-KNSBN) trilayer thin films, were epitaxially grown on MgO(0 0 1) and SrTiO3(0 0 1) by using pulsed laser deposition (PLD). Their ferroelectric, magnetic, dielectric and optical properties were investigated. It was found that both ferroelectric polarization and dielectric constant of the films were enhanced by introducing KNSBN as a barrier layer. Meanwhile, ferromagnetism of BFO was maintained. More interestingly, a double hysteresis magnetic loop was observed in the KNSBN-BFO-KNSBN trilayer films, where exchange bias and secondary phase in the BFO layer played crucial roles. Interactions between adjacent layers were revealed by temperature-dependent Raman spectroscopic measurements.

KW - Ferroelectric properties

KW - Magnetic properties

KW - Multiferroic thin films

KW - Optical properties

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

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