In a coupled ferroelectric-ferromagnetic system, ie, a composite multiferroic, the propagation
of magnetic or ferroelectric excitations across the whole structure is a key issue for …

We investigate the pinning of domain walls in ferroelectrics on the basis of the two phonon
bound state (TPBS) or discrete breather state due to impurity energy levels above the …

The presence of classical breathers and two-phonon bound state (TPBS) or quantum
breather (QB) state through detailed quantum calculations have already been shown in …

Through detailed quantum calculations, the presence of classical discrete breathers and,
subsequently, a two-phonon bound state (TPBS) or quantum breather (QB) state have …

274Solitons are the solutions of nonlinear partial differential equations whose modal
behavior can be described by a nonlinear Klein‐Gordon (NLKG) equation that is derived …

The goal of this paper is to explore whether SRR system, through engineering of their
geometry (ie change of coupling) and permittivity, shows any sensitivity on the femtosecond …

Lithium tantalate is technologically one of the most important ferroelectric materials with a
low poling field that has several applications in the field of photonics and memory switching …

We have attempted to induce the theoretically predicted anharmonic lattice modes called
intrinsic localized modes in the NaI single crystal lattice by UV excitation of the impurity …

Metamaterials are also important nonlinear optical materials for applications in split-ring-
resonator (SRR) in the antenna arrays. By using a Klein-Gordon approach, first classical …

Lithium niobate and lithium tantalate are technologically very important ferroelectric
materials with a low switching field that have several applications in the field of nonlinear …