The Influence of Ca Substitution on Magnetic and Electric Properties of GdCoO_{3- δ} Cobaltite

Abstract:

The polycrystal samples of Gd1-xCaxCoO3-δ with different content of Ca were synthesized by three different techniques: solution method, solid state reaction and a sol-gel method. A study of magnetic and electric properties have been made. It is shown that the magnetic properties of this compound are in a high degree close to the same of the parent GdCoO3 with Co3+ ions being in a low spin state below the room temperature. The conductivity investigation revealed its increase by alkaline-earth substitution typical in rare-earth cobaltites.

• Periodical: Solid State Phenomena (Volumes 168-169)
• Pages: 501-504
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.168-169.501
• Online since: December 2010
• Authors: N.B. Ivanova, Juan Bartolomé, A. Figueroa, J. Blasco, Ana B. Arauzo, M.S. Platunov, V.V. Rudenko, N.V. Kazak
• Keywords: Rare Earth Cobaltites, Spin State Instability, Variable-Range Hopping

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DOI: 10.1016/j.jmmm.2008.11.087

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