Composition-dependent spin exchange interaction for multiferroicity in perovskite Pb(Fe<inf>1/2</inf>Nb<inf>1/2</inf>)O<inf>3</inf>

Park, JH; Cho, JH; Marlton, FP; Jang, H; Lee, JH; Jang, J; Hwang, GT; Pramanick, A; Jørgensen, MRV; Kim, MG; Jo, W

Composition-dependent spin exchange interaction for multiferroicity in perovskite Pb(Fe<inf>1/2</inf>Nb<inf>1/2</inf>)O<inf>3</inf>

Park, JH Cho, JH Marlton, FP Jang, H Lee, JH Jang, J Hwang, GT Pramanick, A Jørgensen, MRV Kim, MG Jo, W

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Publisher:: AIP Publishing
Publication Type:: Journal Article
Citation:: Journal of Applied Physics, 2024, 135, (20), pp. 204102
Issue Date:: 2024-05-28

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Field	Value	Language
dc.contributor.author	Park, JH
dc.contributor.author	Cho, JH
dc.contributor.author	Marlton, FP
dc.contributor.author	Jang, H
dc.contributor.author	Lee, JH
dc.contributor.author	Jang, J
dc.contributor.author	Hwang, GT
dc.contributor.author	Pramanick, A
dc.contributor.author	Jørgensen, MRV
dc.contributor.author	Kim, MG
dc.contributor.author	Jo, W
dc.date.accessioned	2025-01-23T05:54:42Z
dc.date.available	2025-01-23T05:54:42Z
dc.date.issued	2024-05-28
dc.identifier.citation	Journal of Applied Physics, 2024, 135, (20), pp. 204102
dc.identifier.issn	0021-8979
dc.identifier.issn	1089-7550
dc.identifier.uri	http://hdl.handle.net/10453/184114
dc.description.abstract	The composition-dependent spin exchange interaction in a perovskite-structured Pb(Fe0.5−xNix)Nb1/2O3 system has been studied to understand its multiferroicity at room-temperature. Special emphasis was paid to the magnetic behavior in terms of magnetic moment, interatomic distance, and atomic ordering because they play a key role in the modulation of magnetic multiferroic behavior. We observed that 10 mol. % Ni incorporation led to multiferroic behavior with considerable ferrimagnetic properties (saturation magnetization of 0.6 emu/g and a coercive field of 20 Oe) coupled with the inherent properties of displacive ferroelectricity (spontaneous polarization of 20 μC/cm2). A subsequent increase in the Ni substitution degree degraded the ferroelectricity due to a phase transition from a non-centrosymmetric rhombohedral to a centrosymmetric cubic system. We have shown that magnetic spins with a pronounced magnetic moment along the [001] direction are ferrimagnetically arranged when the interatomic distance between the magnetic transition metals at the octahedral site is less than 4 Å, resulting in significant magnetic properties The objective of this study is to provide a general methodology for modulating magnetic orders in ferroelectric perovskite oxides.
dc.language	en
dc.publisher	AIP Publishing
dc.relation.ispartof	Journal of Applied Physics
dc.relation.isbasedon	10.1063/5.0211130
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	01 Mathematical Sciences, 02 Physical Sciences, 09 Engineering
dc.subject.classification	Applied Physics
dc.subject.classification	40 Engineering
dc.subject.classification	49 Mathematical sciences
dc.subject.classification	51 Physical sciences
dc.title	Composition-dependent spin exchange interaction for multiferroicity in perovskite Pb(Fe<inf>1/2</inf>Nb<inf>1/2</inf>)O<inf>3</inf>
dc.type	Journal Article
utslib.citation.volume	135
utslib.for	01 Mathematical Sciences
utslib.for	02 Physical Sciences
utslib.for	09 Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Science
pubs.organisational-group	University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	open_access	*
dc.date.updated	2025-01-23T05:54:41Z
pubs.issue	20
pubs.publication-status	Published
pubs.volume	135
utslib.citation.issue	20

Abstract:

The composition-dependent spin exchange interaction in a perovskite-structured Pb(Fe0.5−xNix)Nb1/2O3 system has been studied to understand its multiferroicity at room-temperature. Special emphasis was paid to the magnetic behavior in terms of magnetic moment, interatomic distance, and atomic ordering because they play a key role in the modulation of magnetic multiferroic behavior. We observed that 10 mol. % Ni incorporation led to multiferroic behavior with considerable ferrimagnetic properties (saturation magnetization of 0.6 emu/g and a coercive field of 20 Oe) coupled with the inherent properties of displacive ferroelectricity (spontaneous polarization of 20 μC/cm2). A subsequent increase in the Ni substitution degree degraded the ferroelectricity due to a phase transition from a non-centrosymmetric rhombohedral to a centrosymmetric cubic system. We have shown that magnetic spins with a pronounced magnetic moment along the [001] direction are ferrimagnetically arranged when the interatomic distance between the magnetic transition metals at the octahedral site is less than 4 Å, resulting in significant magnetic properties The objective of this study is to provide a general methodology for modulating magnetic orders in ferroelectric perovskite oxides.

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