Magneto-structural coupling in SrTcxRu1-xO3 (x = 0.25,0.5) perovskites
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Date
2020-07
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Publisher
Elsevier
Abstract
The structure and magnetic properties of the mixed technetium-ruthenium perovskites SrTcxRu1-xO3 (x = 0.25 and 0.5) have been investigated using variable temperature synchrotron X-ray diffraction, magnetic susceptibility measurements, and DFT calculations. Both oxides are isostructural with SrRuO3 and SrTcO3, and there is no evidence of long-range cation order. Magnetostriction is observed along the c-axis for both oxides. The inverse susceptibility and DFT calculations suggest a cation-disordered ferrimagnetic ground state for SrTc 0.5 Ru 0.5 O3. ©2020 Elsevier Inc.
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Keywords
Perovskites, Phase transformations, Synchrotrons, X-ray diffraction, Ferrimagnetism, Technetium, Coupling
Citation
Reynolds, E. M., Romao, C. P., Brand, H. E. A., Thorogood, G. J., Poineau, F., Czerwinski, K. R., & Kennedy, B. J. (2020). Magneto-structural coupling in SrTcxRu1-xO3 (x= 0.25, 0.5) perovskites. Journal of Solid State Chemistry, 287, 121378. doi:10.1016/j.jssc.2020.121378