DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Imaging Ferroelastic Domain Walls in Hybrid Improper Ferroelectric Sr3Sn2O7

Journal Article · · Nano Letters
 [1];  [1];  [2];  [2];  [2];  [3];  [3]; ORCiD logo [1]
  1. Univ. of Tennessee, Knoxville, TN (United States)
  2. Rutgers Univ., Piscataway, NJ (United States)
  3. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)

For this work, we combined synchrotron-based near field infrared spectroscopy and atomic force microscopy to image the properties of ferroelastic domain walls in Sr3Sn2O7. Although frequency shifts at the walls are near the limit of our sensitivity, we can confirm semiconducting rather than metallic character and widths between 20 and 60 nm. The latter is significantly narrower than in other hybrid improper ferroelectrics like Ca3Ti2O7. We attribute this trend to the softer lattice in Sr3Sn2O7, which may enable the octahedral tilt and rotation order parameters to evolve more quickly across the wall without significantly increased strain. These findings are crucial for the understanding of phononic properties at interfaces and the development of domain wall-based devices.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
2477943
Journal Information:
Nano Letters, Journal Name: Nano Letters Journal Issue: 45 Vol. 24; ISSN 1530-6984
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (36)

Ferroelectric Sr 3 Zr 2 O 7 : Competition between Hybrid Improper Ferroelectric and Antiferroelectric Mechanisms journal May 2018
Highly Tunable Ferroelectricity in Hybrid Improper Ferroelectric Sr 3 Sn 2 O 7 journal August 2020
The First Room-Temperature Ferroelectric Sn Insulator and Its Polarization Switching Kinetics journal October 2016
Polar octahedral rotations: A path to new multifunctional materials journal November 2012
Synchrotron infrared nano-spectroscopy and -imaging journal August 2020
Design, Preparation, and Characterization of a Novel Red Long-Persistent Perovskite Phosphor: Ca3Ti2O7:Pr3+ journal November 2015
Infrared Chemical Nano-Imaging: Accessing Structure, Coupling, and Dynamics on Molecular Length Scales journal March 2015
Far Infrared Synchrotron Near-Field Nanoimaging and Nanospectroscopy journal December 2017
Understanding the Image Contrast of Material Boundaries in IR Nanoscopy Reaching 5 nm Spatial Resolution journal July 2018
Symmetry Switching of Negative Thermal Expansion by Chemical Control journal March 2016
Hybrid Improper Ferroelectricity in (Sr,Ca) 3 Sn 2 O 7 and Beyond: Universal Relationship between Ferroelectric Transition Temperature and Tolerance Factor in n = 2 Ruddlesden–Popper Phases journal October 2018
Why Are There So Few Perovskite Ferroelectrics? journal May 2013
Quantitative Measurement of Local Infrared Absorption and Dielectric Function with Tip-Enhanced Near-Field Microscopy journal April 2013
Improper ferroelectricity in perovskite oxide artificial superlattices journal April 2008
Domain topology and domain switching kinetics in a hybrid improper ferroelectric journal May 2016
Structural domain walls in polar hexagonal manganites journal February 2013
Experimental demonstration of hybrid improper ferroelectricity and the presence of abundant charged walls in (Ca,Sr)3Ti2O7 crystals journal January 2015
Infrared nano-spectroscopy of ferroelastic domain walls in hybrid improper ferroelectric Ca3Ti2O7 journal November 2019
Structural transitions, octahedral rotations, and electronic properties of A3Ni2O7 rare-earth nickelates under high pressure journal April 2024
Understanding ferroelectricity in layered perovskites: new ideas and insights from theory and experiments journal January 2015
Resolution limits for infrared microspectroscopy explored with synchrotron radiation journal January 2001
Optical spectroscopy and band gap analysis of hybrid improper ferroelectric Ca3Ti2O7 journal June 2016
Mapping the structural transitions controlled by the trilinear coupling in Ca 3- x Sr x Ti 2 O 7 journal June 2019
Ultrabroadband infrared nanospectroscopic imaging journal May 2014
Revealing pressure-driven structural transitions in the hybrid improper ferroelectric Sr3Sn2O7 journal August 2021
Octahedral rotations in Ruddlesden-Popper layered oxides under pressure from first principles journal October 2021
Symmetry analysis for the Ruddlesden-Popper systems Ca 3 Mn 2 O 7 and Ca 3 Ti 2 O 7 journal August 2011
Domains and ferroelectric switching pathways in Ca 3 Ti 2 O 7 from first principles journal September 2016
Temperature-dependent exchange stiffness and domain wall width in Co journal September 2016
Soft antiphase tilt of oxygen octahedra in the hybrid improper multiferroic Ca 3 Mn 1.9 Ti 0.1 O 7 journal January 2018
Hybrid Improper Ferroelectricity: A Mechanism for Controllable Polarization-Magnetization Coupling journal March 2011
Negative Thermal Expansion in Hybrid Improper Ferroelectric Ruddlesden-Popper Perovskites by Symmetry Trapping journal January 2015
Tunable Negative Thermal Expansion in Layered Perovskites from Quasi-Two-Dimensional Vibrations journal September 2016
Hidden Antipolar Order Parameter and Entangled Néel-Type Charged Domain Walls in Hybrid Improper Ferroelectrics journal October 2017
Domain wall nanoelectronics journal February 2012
Domains and domain walls in multiferroics journal April 2020