Year: 2016
Type: article
Abstract: The paper describes lamellar heterostructures, observed in $(1\ensuremath{-}x)\text{Pb}({\mathrm{Mg}}_{1/3}{\mathrm{Nb}}_{2/3}){\mathrm{O}}_{3}\text{\ensuremath{-}}x{\mathrm{PbTiO}}_{3}$ (PMN-$x\text{PT}$) single crystals with $x=0.32$. These lamellas are naturally formed in single crystals cooled under bias electric field applied along $[001{\mathrm{]}}_{\mathrm{pc}}$ and then zero-field heated to the vicinity of the so-called depoling temperature ${T}_{\mathrm{RT}}$, but similar structures were also encountered at ambient conditions. The polarization dependence of the Raman scattering intensities was employed to demonstrate that these lamellar structures are composed of tetragonal-like and rhombohedral-like layers extending over macroscopic (mm) lengths. The properties and interest of these macroscopic heterophase interfaces are discussed.
Authors: I. Rafalovskyi, M. Guennou, I. Gregora, J. Hlinka
Language: Latvian
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2991004005