2 papers
physics.app-ph2018
Ferroelectric polarization rotation in order-disorder-type LiNbO3 thin films
Tae Sup Yoo, Sang A Lee, Changjae Roh +16
The direction of ferroelectric polarization is prescribed by the symmetry of the crystal structure. Therefore, rotation of the polarization direction is largely limited, despite th…
cond-mat.mtrl-sci2018
Oxygen vacancy-induced structural evolution of SrFeO epitaxial thin film from brownmillerite to perovskite
Seulki Roh, Seokbae Lee, Myounghoon Lee +8
We investigated SrFeO thin films on a SrTiO (001) substrate prepared via pulsed laser epitaxy using an optical spectroscopy technique. The oxygen vacancy level () wa…