Infrared nano-spectroscopy of ferroelastic domain walls in hybrid improper ferroelectric Ca3Ti2O7

K. A. Smith; E. A. Nowadnick; S. Fan; O. Khatib; S. J. Lim; B. Gao; N. C. Harms; S. N. Neal; J. K. Kirkland; M. C. Martin; C. J. Won; M. B. Raschke; S.-W. Cheong; C. J. Fennie; G. L. Carr; H. A. Bechtel; J. L. Musfeldt

doi:10.1038/s41467-019-13066-9

Nature Communications (Nov 2019)

Infrared nano-spectroscopy of ferroelastic domain walls in hybrid improper ferroelectric Ca3Ti2O7

K. A. Smith,
E. A. Nowadnick,
S. Fan,
O. Khatib,
S. J. Lim,
B. Gao,
N. C. Harms,
S. N. Neal,
J. K. Kirkland,
M. C. Martin,
C. J. Won,
M. B. Raschke,
S.-W. Cheong,
C. J. Fennie,
G. L. Carr,
H. A. Bechtel,
J. L. Musfeldt

Affiliations

K. A. Smith: Department of Chemistry, University of Tennessee
E. A. Nowadnick: Department of Physics, New Jersey Institute of Technology
S. Fan: Department of Physics, University of Tennessee
O. Khatib: Department of Physics, Department of Chemistry, and JILA, University of Colorado
S. J. Lim: Rutgers Center for Emergent Materials, Rutgers University
B. Gao: Department of Physics and Astronomy, Rutgers University
N. C. Harms: Department of Chemistry, University of Tennessee
S. N. Neal: Department of Chemistry, University of Tennessee
J. K. Kirkland: Department of Chemistry, University of Tennessee
M. C. Martin: Advanced Light Source Division, Lawrence Berkeley National Laboratory
C. J. Won: Laboratory for Pohang Emergent Materials, Pohang Accelerator Laboratory and Max Planck POSTECH Center for Complex Phase Materials, Pohang University of Science and Technology
M. B. Raschke: Department of Physics, Department of Chemistry, and JILA, University of Colorado
S.-W. Cheong: Rutgers Center for Emergent Materials, Rutgers University
C. J. Fennie: School of Applied and Engineering Physics, Cornell University
G. L. Carr: National Synchrotron Light Source II, Brookhaven National Laboratory
H. A. Bechtel: Advanced Light Source Division, Lawrence Berkeley National Laboratory
J. L. Musfeldt: Department of Chemistry, University of Tennessee

DOI: https://doi.org/10.1038/s41467-019-13066-9
Journal volume & issue: Vol. 10, no. 1
pp. 1 – 9

Abstract

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Ferroic domain walls are nano-objects that are considered functional elements in future devices. Here, the authors study phonons across ferroelastic domain walls by synchrotron-based near-field infrared nano-spectroscopy and relate these changes to the order parameter which helps to understand domain wall dynamics.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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