Scaling behavior of order parameters for the hybrid improper ferroelectric (Ca, Sr)3Ti2O7

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

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Author(s)

  • Alicia Manjón-Sanz
  • Jue Liu
  • Frederick Marlton
  • Tsz Wing Lo
  • Mads Ry Vogel Jørgensen

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Detail(s)

Original languageEnglish
Article number224103
Journal / PublicationPhysical Review B
Volume107
Issue number22
Publication statusPublished - 1 Jun 2023

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Publisher's Copyright Statement
  • Kong, J., Manjón-Sanz, A., Liu, J., Marlton, F., Lo, T. W., Lei, D., Jørgensen, M. R. V., & Pramanick, A. (2023). Scaling behavior of order parameters for the hybrid improper ferroelectric (Ca, Sr)3Ti2O7. Physical Review B, 107(22), [224103]. https://doi.org/10.1103/PhysRevB.107.224103. The copyright of this article is owned by American Physical Society.
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-85163300269&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(65ec4cdd-67a7-4201-9224-c2219c297546).html

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. © 2023 American Physical Society.

Research Area(s)

  • DIFFRACTOMETER, PEROVSKITES

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Behavior Earth and Planetary Scien...
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Order Earth and Planetary Scien...
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Hybrid Earth and Planetary Scien...
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Ferroelectric Mater... Earth and Planetary Scien...
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Scaling Behavior Keyphrases
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Mean Field Keyphrases
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Order Parameter Keyphrases
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Ising Keyphrases
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Hybrid Improper Fer... Keyphrases
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Scaling Engineering
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Citation Format(s)

[ RIS ] [ BibTeX ]
Scaling behavior of order parameters for the hybrid improper ferroelectric (Ca, Sr)3Ti2O7. / Kong, Jing; Manjón-Sanz, Alicia; Liu, Jue et al.
In: Physical Review B, Vol. 107, No. 22, 224103, 01.06.2023.

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

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