Title of article
Electrical and magnetic properties of pseudo-one-dimensional calcium iridium oxide Ca5Ir3O12
Author/Authors
Wakeshima، نويسنده , , Makoto and Taira، نويسنده , , Nobuyuki and Hinatsu، نويسنده , , Yukio and Ishii، نويسنده , , Yoshinobu، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2003
Pages
5
From page
311
To page
315
Abstract
The electrical and magnetic properties of one-dimensional calcium iridium oxide Ca5Ir3O12 are investigated. A weak ferromagnetic transition has been found at 7.5 K through magnetic susceptibility measurements. At the same temperature, a λ-type specific heat anomaly has been observed. The effective magnetic moments in the paramagnetic temperature range and the magnetic entropy due to the magnetic transition indicates that the tetravalent and pentavalent Ir ions exist in the ratio of 1:2. Another λ-type anomaly has been observed at 105 K in the temperature dependence of the specific heat. The electrical conductivity shows one-dimensional Mott variable-range hopping conduction behavior.
Keywords
D. Weak ferromagnetic transition , A. Calcium iridium oxide
Journal title
Solid State Communications
Serial Year
2003
Journal title
Solid State Communications
Record number
1787763
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