Scaling behavior of order parameters for the hybrid improper ferroelectric (Ca,Sr)3Ti2 O7
(2023) In Physical Review B 107(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<Tc, which is driven by enhanced interlayer dipolar correlations due to an increase in the ferroelectrically active B-site centered dipoles.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/92f4b03e-587d-4f7a-80b0-3c8fddb2e9a9
- author
- Kong, Jing ; Manjón-Sanz, Alicia ; Liu, Jue ; Marlton, Frederick ; Lo, Tsz Wing ; Lei, Dangyuan ; Jørgensen, Mads Ry Vogel LU and Pramanick, Abhijit
- organization
- publishing date
- 2023-06
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review B
- volume
- 107
- issue
- 22
- article number
- 224103
- publisher
- American Physical Society
- external identifiers
-
- scopus:85163300269
- ISSN
- 2469-9950
- DOI
- 10.1103/PhysRevB.107.224103
- language
- English
- LU publication?
- yes
- id
- 92f4b03e-587d-4f7a-80b0-3c8fddb2e9a9
- date added to LUP
- 2023-09-15 14:22:59
- date last changed
- 2023-09-15 14:22:59
@article{92f4b03e-587d-4f7a-80b0-3c8fddb2e9a9, abstract = {{<p>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.</p>}}, author = {{Kong, Jing and Manjón-Sanz, Alicia and Liu, Jue and Marlton, Frederick and Lo, Tsz Wing and Lei, Dangyuan and Jørgensen, Mads Ry Vogel and Pramanick, Abhijit}}, issn = {{2469-9950}}, language = {{eng}}, number = {{22}}, publisher = {{American Physical Society}}, series = {{Physical Review B}}, title = {{Scaling behavior of order parameters for the hybrid improper ferroelectric (Ca,Sr)3Ti2 O7}}, url = {{http://dx.doi.org/10.1103/PhysRevB.107.224103}}, doi = {{10.1103/PhysRevB.107.224103}}, volume = {{107}}, year = {{2023}}, }