Physics – Condensed Matter – Materials Science
Scientific paper
2011-02-04
Phys. Status Solidi B 249, 789 (2012)
Physics
Condensed Matter
Materials Science
7 pages, 3 figures, 4 tables
Scientific paper
10.1002/pssb.201147350
Phonon spectra of the paraelectric phase, structure and distribution of polarization in the polar ground state, and energies of ferroelectrically and antiferroelectrically ordered phases were calculated for stress-free (KNbO$_3$)$_1$(KTaO$_3$)$_n$ superlattices ($n = {}$1--7) from first principles within the density-functional theory. Quasi-two-dimensional ferroelectric state with the polarization localized in the KNbO$_3$ layer was revealed to be the ground state for the superlattices with $n \ge 2$. The interaction between these polarized layers decreases exponentially with increasing the interlayer distance, and the ground-state structure transforms to an array of nearly independent ferroelectrically ordered planes at large $n$.
No associations
LandOfFree
Ground-state structure of KNbO$_3$/KTaO$_3$ superlattices: Array of nearly independent ferroelectrically ordered planes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Ground-state structure of KNbO$_3$/KTaO$_3$ superlattices: Array of nearly independent ferroelectrically ordered planes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ground-state structure of KNbO$_3$/KTaO$_3$ superlattices: Array of nearly independent ferroelectrically ordered planes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-492298