Eur. Phys. J. AP 2, 203-207 (1998)
https://doi.org/10.1051/epjap:1998185

Current voltage characteristics of α-quartz

National Institute of Materials Physics, PO Box MG-7, 76900 Bucharest-Magurele, Romania

Corresponding author: brandi@alphal.infim.ro

Received: 19 July 1997
Revised: 12 February 1998
Accepted: 26 March 1998
Published online: 15 June 1998

Abstract

Dc conductivity measurements for Z-cut natural quartz plates, at different temperatures and values of the applied electric field were made. The evolution of I−V characteristics shapes is studied for electrodiffusion times up to 100 h (in interstitial alkali ions transport region). The non-ohmic behavior is discussed and is considered to be due to the space charge produced by the uncompensated Al³⁺ ions substitutional for Si⁴⁺.