Hassen, Arafa ; Krimmel, Alexander ; Mandal, Prabhat ; Damjanovic, D. (2014) Comparative Study of the Layered Perovskites Pr1−x A1+x CoO4 , (A = Sr, Ca) Journal of the American Ceramic Society, 97 (11). pp. 3609-3614. ISSN 0002-7820
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Official URL: http://doi.org/10.1111/jace.13172
Related URL: http://dx.doi.org/10.1111/jace.13172
Abstract
We present structural, magnetic, and electric properties of Pr1−x A1+x CoO4 layered perovskites and compare them with the results of recently studied Pr1−x A1+x CoO4. The Rietveld refinements of X-ray powder diffraction (XRD) patterns indicate that all samples crystallize in the K2NiF4-type structure with space group symmetry I4/mmm. The parent compounds Pr(Ca, Sr)CoO4 are paramagnetic insulators. Upon increasing x, a variety of different magnetic transitions can be identified. The complex magnetic behavior results from the interplay of competing interactions. The temperature-dependent electrical resistivity of the samples shows 2D variable range hopping (2D-VRH). The results are discussed with respect to structure−property relationships.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Ceramic Society. |
| ID Code: | 122819 |
| Deposited On: | 17 Aug 2021 04:47 |
| Last Modified: | 17 Aug 2021 04:47 |
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