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ANSTO Publications Online >
Journal Publications >
Journal Articles >
Please use this identifier to cite or link to this item:
http://apo.ansto.gov.au/dspace/handle/10238/3898
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| Title: | Magnetic properties in polycrystalline and single crystal Ca-doped LaCoO3 |
| Authors: | Zeng, R Debnath, JC Chen, DP Shamba, P Wang, JL Kennedy, SJ Campbell, SJ Silver, T Dou, SX |
| Keywords: | Magnetic Properties Crystals Spin Glass State Magnetization Crystal Structure Phase Studies |
| Issue Date: | 1-Apr-2011 |
| Publisher: | American Physical Society |
| Citation: | Zeng, R., Debnath, J.C., Chen, D.P., Shamba, P., Wang, J.L., Kennedy, S.J., Campbell, S.J., Silver, T., Dou, S.X. (2011). Magnetic properties in polycrystalline and single crystal Ca-doped LaCoO3, Journal of Applied Physics, Vol. 109(7); Art. No. 07E146. |
| Abstract: | Polycrystalline (PC) and single crystalline (SC) Ca-doped LaCoO3 (LCCO) samples with the perovskite structure were synthesized by conventional solid-state reaction and the floating-zone growth method. We present the results of a comprehensive investigation of the magnetic properties of the LCCO system. Systematic measurements have been conducted on dc magnetization, ac susceptibility, exchange-bias, and the magnetocaloric effect. These findings suggest that complex structural phases, ferromagnetic (FM), and spin-glass/cluster-spin-glass (CSG), and their transitions exist in PC samples, while there is a much simpler magnetic phase in SC samples. It was also of interest to discover that the CSG induced a magnetic field memory effect and an exchange-bias-like effect, and that a large inverse irreversible magnetocaloric effect exists in this system.(C) 2011 American Institute of Physics. [doi:10.1063/1.3562518] |
| URI: | http://dx.doi.org/10.1063/1.3562518 http://apo.ansto.gov.au/dspace/handle/10238/3898 |
| ISSN: | 0021-8979 |
| Appears in Collections: | Journal Articles |
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