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Proceedings Paper

Magnetoresistance and electrical noise in silver chalcogenide Ag2Te
Author(s): Lai Jiang; Edmund R. Nowak
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Paper Abstract

The relatively large and linear magnetoresistance found in nonstoichiometric silver chalcogenides makes them attractive candidates for studying the mechanisms of linear magnetoresistance and for field sensing applications. After a brief review of the magnetoresistive properties of these materials, we report on the intrinsic electrical noise in bulk, polycrystalline Ag2+δTe. Low-frequency noise is due to resistance fluctuations having a 1/f-like power spectrum. The temperature dependence of the noise magnitude and its spectral slope indicate thermally activated kinetics which we attribute to some form of charge trapping-detrapping process occurring in or near the intergranular regions. The effective magnetic field noise in Ag2+δTe is also compared to other materials systems used in field sensing applications.

Paper Details

Date Published: 9 May 2003
PDF: 8 pages
Proc. SPIE 5112, Noise as a Tool for Studying Materials, (9 May 2003); doi: 10.1117/12.496919
Show Author Affiliations
Lai Jiang, Univ. of Delaware (United States)
Edmund R. Nowak, Univ. of Delaware (United States)

Published in SPIE Proceedings Vol. 5112:
Noise as a Tool for Studying Materials
Michael B. Weissman; Nathan E. Israeloff; A. Shulim Kogan, Editor(s)

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