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arXiv · 1906.01366

Growth and characterization of (La,Ce)OBiS2 single crystals

Yuji Hanada·Masanori Nagao·Akira Miura·Yuki Maruyama·Satoshi Watauchi·Yoshihiko Takano·Isao Tanaka
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Abstract

(La,Ce)OBiS2 single crystals are successfully grown using CsCl flux. The obtained single crystals have a plate-like shape with a size of 0.5-2.0 mm and a well-developed ab-plane. The thickness of the crystals increases with a decrease in the Ce content. The (La,Ce)OBiS2 single crystals exhibit superconducting properties. Moreover, the superconducting transition temperature increases with an increase in the Ce content. The obtained (La,Ce)OBiS2 single crystals exhibit a tetragonal structure and the valence state of Ce in the crystals is determined to be mixed with Ce3+ and Ce4+ based on X-ray absorption fine structure spectroscopy.

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Yuji Hanada, Masanori Nagao, Akira Miura, Yuki Maruyama, Satoshi Watauchi, Yoshihiko Takano, Isao Tanaka. 2019-06-04. Growth and characterization of (La,Ce)OBiS2 single crystals. https://doi.org/10.7567/1347-4065/ab22cf

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