The distinguishing characteristic of an insulator is its resistivity. An has a higher resistivity than semiconductor or conductor and high dielectric properties. adjustable property characterized by change in the permittivity under applied electric field, this phenomenon called "dielectric nonlinearity" (dielectric tunability properties). With these properties, new will arise properties ceramic...

Bismuth telluride (Bi(2)Te(3)) and its alloys are the best bulk thermoelectric materials known today. In addition, stacked quasi-two-dimensional (2D) layers of Bi(2)Te(3) were recently identified as promising topological insulators. In this Letter we describe a method for "graphene-inspired" exfoliation of crystalline bismuth telluride films with a thickness of a few atoms. The atomically thin ...

Tungsten ditelluride (WTe2) is a layered material that exhibits excellent magnetoresistance and thermoelectric behaviors, which are deeply related with its distorted orthorhombic phase that may critically affect the lattice dynamics of this material. Here, we report comprehensive characterization of Raman spectra of WTe2 from bulk to monolayer using experimental and computational methods. We fi...

A topological insulator (TI) is an unusual quantum state in which the insulating bulk is topologically distinct from vacuum, resulting in a unique metallic surface that is robust against time-reversal invariant perturbations. The surface transport, however, remains difficult to isolate from the bulk conduction in most existing TI crystals (particularly Bi₂Se₃, Bi₂Te₃ and Sb₂Te₃) due to impurity...

A preparation method is described of monophasic y t t r i a s tab i l ized zirconia doped with Bi203. This material is prepared from a homogeneous power which, a f te r pressing, is sintered in a Bi203 atmosphere. The resu l t ing ceramic has a composition of 0.78Zr02-0.206 YO1.5-O.O14Bi01. 5. The grain boundaries are enriched with bismuth. A re la t i ve density of 95% of the theoret ica l one...