Sr 3 Sn 2 O 7 is the first room-temperature ferroelectric Sn insulator with switchable electric
polarization. The ferroelastic twin domains are observed using a polarized optical …

An ab initio–based model of the temperature-induced ferroelectric phase transition in Sn 2 P
2 S 6 (SPS) as a prototype of an unconventional ferroelectric is developed. The order …

Using the Landau-Ginzburg-Devonshire theory, we established the role of the flexoelectric
coupling between the gradients of elastic strain and polarization in the stability of spatially …

In this concept paper, the development of strategies for the integration of first-principles
methods with crystallographic database mining for the discovery and design of novel …

The low frequency lattice dynamics and its relationship to the second order paraelectric-to-
ferroelectric transition in Sn 2 P 2 S 6 is studied. The dispersion branches of the acoustic …

The electronic properties of the ferroelectric compound Sn 2 P 2 S 6 are investigated by x-
ray photoelectron spectroscopy and soft x-ray fluorescence spectroscopy. Excellent …

Flexoelectric and flexomagnetic effects can be important in ferromagnetic or
antiferromagnetic thin films, nanoparticles, magnetic vortices, skyrmions, and other curved …

The dielectric properties of lamellar CuInP2Se6 are studied as a function of temperature.
Two phase transitions are detected: a second-order one at T i= 248 K and a first-order …

The interaction between soft optic and acoustic phonons was investigated for Sn 2 P 2 (Se
0.28 S 0.72) 6 proper uniaxial ferroelectrics by Brillouin-scattering and ultrasonic pulse-echo …

Using the Landau-Ginzburg-Devonshire theory and one component approximation, we
examined the conditions of the soft acoustic phonon mode (A-mode) appearance in a …