Long-range Stripe Nanodomains in Epitaxial (110) BiFeO3 Thin Films on (100) NdGaO3 Substrate

Yogesh Sharma; Radhe Agarwal; Charudatta Phatak; Bumsoo Kim; Seokwoo Jeon; Ram S. Katiyar; Seungbum Hong

doi:10.1038/s41598-017-05055-z

Long-range Stripe Nanodomains in Epitaxial (110) BiFeO₃ Thin Films on (100) NdGaO₃ Substrate

Yogesh Sharma, Radhe Agarwal, Charudatta Phatak, Bumsoo Kim, Seokwoo Jeon, Ram S. Katiyar, Seungbum Hong^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Abstract

Here, we report the observation of ferroelectric and ferroelastic nanodomains in (110)-oriented BiFeO₃ (BFO) thin films epitaxially grown on low symmetric (100) NdGaO₃ (NGO) substrate. We observed long range ordering of ferroelectric 109° stripe nanodomains separated by periodic vertical domain walls in as-grown 130 nm thick BFO films. The effect of La_0.67Sr_0.33CoO₃ (LSCO) conducting interlayer on domain configurations in BFO/NGO film was also observed with relatively short range-ordering of stripe domains due to the modified electrostatic boundary conditions in BFO/LSCO/NGO film. Additional studies on B-site doping of Nb ions in BFO films showed change in the domain structures due to doping induced change in lattice anisotropy while maintaining the stripe domain morphology with 109° domain wall. This long-range array of ferroelectric and ferroelastic domains can be useful for optoelectronic devices and ferroelastic templates for strain coupled artificial magnetoelectric heterostructures.

Original language	English
Article number	4857
Journal	Scientific Reports
Volume	7
DOIs	https://doi.org/10.1038/s41598-017-05055-z
Publication status	Published - 7 Jul 2017
Externally published	Yes

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This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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@article{a287f9e84eee4bc49c5b2fcea6fe624d,

title = "Long-range Stripe Nanodomains in Epitaxial (110) BiFeO3 Thin Films on (100) NdGaO3 Substrate",

abstract = "Here, we report the observation of ferroelectric and ferroelastic nanodomains in (110)-oriented BiFeO3 (BFO) thin films epitaxially grown on low symmetric (100) NdGaO3 (NGO) substrate. We observed long range ordering of ferroelectric 109° stripe nanodomains separated by periodic vertical domain walls in as-grown 130 nm thick BFO films. The effect of La0.67Sr0.33CoO3 (LSCO) conducting interlayer on domain configurations in BFO/NGO film was also observed with relatively short range-ordering of stripe domains due to the modified electrostatic boundary conditions in BFO/LSCO/NGO film. Additional studies on B-site doping of Nb ions in BFO films showed change in the domain structures due to doping induced change in lattice anisotropy while maintaining the stripe domain morphology with 109° domain wall. This long-range array of ferroelectric and ferroelastic domains can be useful for optoelectronic devices and ferroelastic templates for strain coupled artificial magnetoelectric heterostructures.",

author = "Yogesh Sharma and Radhe Agarwal and Charudatta Phatak and Bumsoo Kim and Seokwoo Jeon and Katiyar, {Ram S.} and Seungbum Hong",

year = "2017",

month = jul,

day = "7",

doi = "10.1038/s41598-017-05055-z",

language = "English",

volume = "7",

journal = "Scientific Reports",

issn = "2045-2322",

publisher = "Nature Publishing Group",

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T1 - Long-range Stripe Nanodomains in Epitaxial (110) BiFeO3 Thin Films on (100) NdGaO3 Substrate

AU - Sharma, Yogesh

AU - Agarwal, Radhe

AU - Phatak, Charudatta

AU - Kim, Bumsoo

AU - Jeon, Seokwoo

AU - Katiyar, Ram S.

AU - Hong, Seungbum

PY - 2017/7/7

Y1 - 2017/7/7

N2 - Here, we report the observation of ferroelectric and ferroelastic nanodomains in (110)-oriented BiFeO3 (BFO) thin films epitaxially grown on low symmetric (100) NdGaO3 (NGO) substrate. We observed long range ordering of ferroelectric 109° stripe nanodomains separated by periodic vertical domain walls in as-grown 130 nm thick BFO films. The effect of La0.67Sr0.33CoO3 (LSCO) conducting interlayer on domain configurations in BFO/NGO film was also observed with relatively short range-ordering of stripe domains due to the modified electrostatic boundary conditions in BFO/LSCO/NGO film. Additional studies on B-site doping of Nb ions in BFO films showed change in the domain structures due to doping induced change in lattice anisotropy while maintaining the stripe domain morphology with 109° domain wall. This long-range array of ferroelectric and ferroelastic domains can be useful for optoelectronic devices and ferroelastic templates for strain coupled artificial magnetoelectric heterostructures.

AB - Here, we report the observation of ferroelectric and ferroelastic nanodomains in (110)-oriented BiFeO3 (BFO) thin films epitaxially grown on low symmetric (100) NdGaO3 (NGO) substrate. We observed long range ordering of ferroelectric 109° stripe nanodomains separated by periodic vertical domain walls in as-grown 130 nm thick BFO films. The effect of La0.67Sr0.33CoO3 (LSCO) conducting interlayer on domain configurations in BFO/NGO film was also observed with relatively short range-ordering of stripe domains due to the modified electrostatic boundary conditions in BFO/LSCO/NGO film. Additional studies on B-site doping of Nb ions in BFO films showed change in the domain structures due to doping induced change in lattice anisotropy while maintaining the stripe domain morphology with 109° domain wall. This long-range array of ferroelectric and ferroelastic domains can be useful for optoelectronic devices and ferroelastic templates for strain coupled artificial magnetoelectric heterostructures.

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U2 - 10.1038/s41598-017-05055-z

DO - 10.1038/s41598-017-05055-z

M3 - RGC 21 - Publication in refereed journal

C2 - 28687796

SN - 2045-2322

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JO - Scientific Reports

JF - Scientific Reports

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