Near-room-temperature reversible switching of quadratic optical nonlinearities in a one-dimensional perovskite-like hybrid

Reversible switching of room temperature ferromagnetism in CeO2-Co nanoparticles

Switching Dielectric Constant Near Room Temperature in a Molecular Crystal

The organic salt bis(2-chloroethyl)amine hydrochloride shows a sharp switching of its dielectric constant at 320 K. The switching property originates from the dynamic changes of the (2-chloroethyl)ammonium cation between frozen and motional states, corresponding to a structural phase transition.

BOUNDARY NONLINEARITIES FOR A ONE-DIMENSIONAL p-LAPLACIAN LIKE EQUATION

We study a nonlinear ordinary second order vector equation of pLaplacian type under nonlinear boundary conditions. Applying Leray-Schauder arguments we obtain solutions under appropriate conditions. Moreover, for the scalar case we prove the existence of at least one periodic solution of the problem applying the method of upper and lower solutions. INTRODUCTION We consider a nonlinear one-dimen...

Near room temperature dielectric transition in the perovskite formate framework [(CH3)2NH2][Mg(HCOO)3].

We report that the hybrid organic-inorganic compound [(CH3)2NH2][Mg(HCOO)3] shows a marked dielectric transition around Tt∼ 270 K, associated to a structural phase transition from SG R3[combining macron]c (centrosymmetric) to Cc (non-centrosymmetric). This is the highest Tt reported so far for a perovskite-like formate that is thus a promising candidate to display electric order very close to r...

Hybrid one-dimensional reversible cellular automata are regular

It is shown that the set of hybrid one-dimensional reversible cellular automata (CA) with the periodic boundary condition is a regular set. This has several important consequences. For example, it allows checking whether a given CA is reversible and the random generation of a reversible CA from the uniform distribution, both using time polynomial in the size of the CA. Unfortunately, the consta...