TY - JOUR
T1 - Suppressing the ferroelectric switching barrier in hybrid improper ferroelectrics
AU - Li, Shutong
AU - Birol, Turan
N1 - Publisher Copyright:
© 2020, The Author(s).
PY - 2020/12/1
Y1 - 2020/12/1
N2 - Integration of ferroelectric materials into novel technological applications requires low coercive field materials, and consequently, design strategies to reduce the ferroelectric switching barriers. In this first principles study, we show that biaxial strain, which has a strong effect on the ferroelectric ground states, can also be used to tune the switching barrier of hybrid improper ferroelectric Ruddlesden–Popper oxides. We identify the region of the strain-tolerance factor phase diagram where this intrinsic barrier is suppressed, and show that it can be explained in relation to strain-induced phase transitions to nonpolar phases.
AB - Integration of ferroelectric materials into novel technological applications requires low coercive field materials, and consequently, design strategies to reduce the ferroelectric switching barriers. In this first principles study, we show that biaxial strain, which has a strong effect on the ferroelectric ground states, can also be used to tune the switching barrier of hybrid improper ferroelectric Ruddlesden–Popper oxides. We identify the region of the strain-tolerance factor phase diagram where this intrinsic barrier is suppressed, and show that it can be explained in relation to strain-induced phase transitions to nonpolar phases.
UR - http://www.scopus.com/inward/record.url?scp=85095422858&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85095422858&partnerID=8YFLogxK
U2 - 10.1038/s41524-020-00436-x
DO - 10.1038/s41524-020-00436-x
M3 - Article
AN - SCOPUS:85095422858
SN - 2057-3960
VL - 6
JO - npj Computational Materials
JF - npj Computational Materials
IS - 1
M1 - 168
ER -