Scaling behavior of order parameters for the hybrid improper ferroelectric (Ca,Sr)3Ti2 O7

Kong, J; Manjón-Sanz, A; Liu, J; Marlton, F; Lo, TW; Lei, D; Jørgensen, MRV; Pramanick, A

Scaling behavior of order parameters for the hybrid improper ferroelectric (Ca,Sr)3Ti2 O7

Kong, J Manjón-Sanz, A Liu, J Marlton, F

Lo, TW Lei, D Jørgensen, MRV Pramanick, A

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Publisher:: AMER PHYSICAL SOC
Publication Type:: Journal Article
Citation:: Physical Review B, 2023, 107, (22)
Issue Date:: 2023-06-01

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Field	Value	Language
dc.contributor.author	Kong, J
dc.contributor.author	Manjón-Sanz, A
dc.contributor.author	Liu, J
dc.contributor.author	Marlton, F https://orcid.org/0000-0001-9071-7109
dc.contributor.author	Lo, TW
dc.contributor.author	Lei, D
dc.contributor.author	Jørgensen, MRV
dc.contributor.author	Pramanick, A
dc.date.accessioned	2024-02-13T00:48:36Z
dc.date.available	2024-02-13T00:48:36Z
dc.date.issued	2023-06-01
dc.identifier.citation	Physical Review B, 2023, 107, (22)
dc.identifier.issn	2469-9950
dc.identifier.issn	2469-9969
dc.identifier.uri	http://hdl.handle.net/10453/175628
dc.description.abstract	We show that in contrast to the conventional view of a mean-field Landau-type behavior, the oxygen octahedral tilt (R) and polarization (P) in the A3B2O7 Ruddlesden-Popper hybrid improper ferroelectric (Ca,Sr)3Ti2O7 exhibits the scaling behavior of a 2D Ising class near the para-to-ferroelectric transition temperature (Tc). We also show that P exhibits an additional transition from a 2D Ising to a 3D mean-field critical behavior at a temperature Td<Tc, which is driven by enhanced interlayer dipolar correlations due to an increase in the ferroelectrically active B-site centered dipoles.
dc.language	English
dc.publisher	AMER PHYSICAL SOC
dc.relation.ispartof	Physical Review B
dc.relation.isbasedon	10.1103/PhysRevB.107.224103
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	34 Chemical sciences
dc.subject.classification	40 Engineering
dc.subject.classification	51 Physical sciences
dc.title	Scaling behavior of order parameters for the hybrid improper ferroelectric (Ca,Sr)3Ti2 O7
dc.type	Journal Article
utslib.citation.volume	107
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	closed_access	*
dc.date.updated	2024-02-13T00:48:35Z
pubs.issue	22
pubs.publication-status	Published
pubs.volume	107
utslib.citation.issue	22

Abstract:

We show that in contrast to the conventional view of a mean-field Landau-type behavior, the oxygen octahedral tilt (R) and polarization (P) in the A3B2O7 Ruddlesden-Popper hybrid improper ferroelectric (Ca,Sr)3Ti2O7 exhibits the scaling behavior of a 2D Ising class near the para-to-ferroelectric transition temperature (Tc). We also show that P exhibits an additional transition from a 2D Ising to a 3D mean-field critical behavior at a temperature Td

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