Magnetic properties of Gd 1-x Sr x CoO 3-δ (x = 067, 090 and 095)
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Date
2005-01-31
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Publisher
Australian Institute of Physics
Abstract
Lanthanide cobaltates (Ln1-xSrxCoO3-δ) (Ln = lanthanide ion) with perovskite-derived structures are of potential use in solid oxide fuel cells [1-4] and oxygen separation [5-6]. The materials show magnetic glassiness [7-8] and ferromagnetism [9]. La1-xSrxCoO3-δ has been widely studied [10 for example]. Interest has recently increased in phases with the smaller lanthanide ions such as Ho, Y and Dy [11]. This work adds to a systematic exploration of the structure and magnetic properties of this family of materials.
The physical properties of these materials depend on composition (Ln3+/Sr2+, O/vacancy, Co3+/Co4+). Oxygen ionic conductivity changes with the O/vacancy ordering and associated structural relaxation [3]; magnetic behaviour will be affected by the Co3+/Co4+ ratio and distribution.
Description
Keywords
Alkaline earth metal compounds, Chalcogenides, Magnetism, Oxygen compounds, Physical properties, Rare earth compounds, Temperature range, Transition element compounds
Citation
Wilson, K. F., Goossens, D. J., & James, M. (2005). Magnetic properties of Gd 1-x Sr x CoO 3-δ (x = 067, 090 and 095). Paper presented to the 29th Condensed Matter and Materials Meeting, "Australian Institute of Physics Sixteenth Biennial Congress", Canberra, 2005, 31 January - 4 February 2005. Retrieved from: https://www.physics.org.au/wp-content/uploads/cmm/2005/35._Wilson_AIP2005(CMMSP).pdf