✦ LIBER ✦

AC Conductivity in the Antiferromagnetic Insulating Phase of the V2O3 System

✍ Scribed by H. Jhans; J.M. Honig; F.A. Chudnovskiy; V.N. Andreev

Publisher: Elsevier Science
Year: 2001
Tongue: English
Weight: 222 KB
Volume: 159
Category: Article
ISSN: 0022-4596
DOI: 10.1006/jssc.2001.9125

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✦ Synopsis

Measurements of the DC conductivity over more than 5ve orders of magnitude and AC impedance over 5 Hz+13 MHz have been performed on V 2 O 3 and Cr-doped V 2 O 3 undergoing the antiferromagnetic insulator+paramagnetic metal phase transition. The governing factor in the explanation of the experimental results is creation of cracks during the phase transition. The electrical characteristics are interpreted in terms of the formation of metallic 5laments in the insulating antiferromagnetic matrix beyond a critical frequency in applied power.

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