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Updated: May 31, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Magneto-structural study of a Cr-doped CaRuO(3)
Rajeev Ranjan1, Rohini Garg, Anatoliy Senyshyn
1Department of Materials Science, Indian Institute of Science, Bangalore 560012, India.
Abstract:
Temperature-dependent neutron powder diffraction, magnetization and XPS studies were carried out on an optimally Cr-doped CaRuO(3), i.e. CaRu(0.85)Cr(0.15)O(3) (CRC-15). XPS data revealed that Cr exist in 3+ and 6+ oxidation states. The charge dissociation preserves the overall 4+ nominal charge of the Ru site. Although ferromagnetic correlations develop around 100 K, the system exhibits a large coercive field below 50 K. The unit cell volume exhibits negative thermal expansion below 50 K since the lattice expansion due to the magnetostrictive effect outweighs the thermal contraction due to the phonon-driven mechanism.
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