Nanofine spatial dissipative structures with azimutal lattice curvation

• Published in: IOP conference series. Materials Science and Engineering Vol. 966; no. 1; pp. 12029 - 12033
• Main Authors: Malkov, V B, Chemezov, O V, Pushin, V G, Malkov, A V, Shulgin, B V, Malkov, O V
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.11.2020
• Subjects: Curvature; Electron diffraction; Electrons; Selenium
• ISSN: 1757-8981; 1757-899X
• DOI: 10.1088/1757-899X/966/1/012029

The nanofine spatial dissipative structures (NSDS) were characterized by transmission electron microscopy and electron diffraction. The NSDS obtained by thermogradiently processing an amorphous selenium film by unilateral heating of its lower surface at T = 413 K preliminarily. The results indicate that the NSDS of hexagonal selenium obtained in an amorphous film possess an azimuthal curvature of the lattice and a nonlinear fan-shaped system of flexural contours on their electron microscopic image. The lattice of the above NSDS undergoes elastic - plastic rotational curvature around three mutually perpendicular directions. The lattice rotation angles of hexagonal selenium NSDS reach: around [001], - 25°, around the direction perpendicular [001] and lying in the plane of the amorphous film - 32°, around the direction perpendicular to the first two ones and not lying in the plane of the amorphous film - azimuthal curvature of the lattice, - 35°. Thus, as a result of electron-microscopic and microdiffraction studies, it was found that NSDS of hexagonal selenium with azimuthal curvature of the lattice, causing the curvature of its habitus, are in a nonequilibrium state.