Observation of the two-dimensional fast ionic migration to surfaces of Naβ-alumina by means of AES

M. Polak, A. Livshits

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The remarkably fast Na+ transport along certain planes in single-crystla Naβ-alumina was reflected in an unusual response to electron-bombardment during AES experiments. When a crystal face perpendicular to these "conduction planes" was bombarded, a concomitant, relatively low, negative surface-charging forced out large quantities of the mobile sodium ions. The migrating ions were reduced at the Naβ-alumina surface to give, after some bombardment time, a thick metallic overlayer which showed a characteristic Auger spectrum with several plasmon loss peaks ∼5 eV apart. The short-term variations in the sodium Auger line intensity allowed quantitative characterization of the Na+ fast diffusion along the conduction planes to the surface.

Original languageEnglish
Pages (from-to)446-454
Number of pages9
JournalApplications of Surface Science
Volume10
Issue number3
DOIs
StatePublished - 1 Jan 1982

Fingerprint

Dive into the research topics of 'Observation of the two-dimensional fast ionic migration to surfaces of Naβ-alumina by means of AES'. Together they form a unique fingerprint.

Cite this