NEW GEOMETRY AND PROPERTIES OF ADVANCED SUPERIONIC CONDUCTORS

1 ANDREEVA Alexandra
Co-authors:
1 DESPOTULI Alexandr
Institution:
1 Institute of microelectronics technology and high purity materials Russian Academy of Sciences, Chernogolovka, Russia, andreeva@ipmt-hpm.ac.ru
Conference:
11th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 16th - 18th 2019
Proceedings:
Proceedings 11th International Conference on Nanomaterials - Research & Application
Pages:
48-53
ISBN:
978-80-87294-95-6
ISSN:
2694-930X
Published:
1st April 2020
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
979 views / 551 downloads
Abstract

Advanced superionic conductors (AdSICs) have the best ion-transport properties. These properties are determined by the AdSIC crystal structure that is close to optimal for fast ionic transport (FIT). The structure represents a close-packed cubic lattice of motionless ions penetrated by a 3D-network of uniform FIT-tunnels in which mobile ions move by hopping mechanism. The descriptors, based on a symmetry group of an immobile rigid sublattice and a local symmetry interconnected interstitial sites through which mobile ions move, are revealed. A new geometry and packing of FIT-tunnels inside the unit cell are presented. Some unusual properties of AdSICs are discussed. It is shown that the specific crystal structure of AdSICs may serve as a basis for searching and 3-D designing new solid ionic materials with high ion-transport properties.

Keywords: Advanced superionic conductors, structural descriptors, tunnels of fast ionic transport, universal dynamic response, 3-D structure design

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Scroll to Top