Author(s)

Hiroaki Samata, Satoshi Tanaka, Soichiro Mizusaki, Yujiro Nagata, Tadashi C. Ozawa, Akira Sato, Kosuke Kosuda

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A new method for the crystal growth of alkaline-earth palladate CaPd₃O₄ was developed. The crystals were synthesized on a voltage-applied electrode in a molten chloride solvent. The maximum length of the crystal was about 1.5 mm. The X-ray diffraction data were refined well by assuming a cubic structure of the space group Pm n, and the lattice constant a was 5.7471 (10) ?. The temperature dependence of the resistivity showed semiconductor-like characteristics with a very small activation energy Ea of 0.45 meV at low temperatures, and the resistivity at 300 K was 0.1 cm. The temperature dependence of the molar magnetic susceptibility showed the Curie-Weiss paramagnetic behavior with a small molar Curie constant C_mol of 5.0(1) × 10^-3 emu K/(mol Oe), indicating the existence of localized spin moments.

Single Crystal; Electrochemical Technique; CaPd₃O₄

H. Samata, S. Tanaka, S. Mizusaki, Y. Nagata, T. Ozawa, A. Sato and K. Kosuda, "Synthesis and Characterization of CaPd₃O₄ Crystals," Journal of Crystallization Process and Technology, Vol. 2 No. 1, 2012, pp. 16-20. doi: 10.4236/jcpt.2012.21003.