Superconductivity phase diagram of Se-substituted CeO0.5F0.5Bi(S1-xSex)2

Abstract

We investigated the effects of Se substitution on the lattice constants and superconducting properties of CeO0.5F0.5Bi(S1-xSex)2. With increasing Se concentration, the a lattice constant increased, while the c lattice constant did not show any significant increase between x = 0.1 and x = 0.5. Bulk superconductivity was observed in samples with x = 0.2-0.4, and the superconducting transition temperature was the highest at x = 0.3. The obtained superconductivity phase diagram was compared to those of LaO0.5F0.5Bi(S1-xSex)2 and NdO0.5F0.5Bi(S1-xSex)2.

5 pages, 3 figures, proceedings of TMU symposium (J. Phys. Conf. Ser.)

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• Minimal electronic models for superconducting BiS${}_2$ layers
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Cited by in corpus (4)

• Material Development and Physical Properties of BiS2-Based Layered Compounds
• Synchrotron powder X-ray diffraction and structural analysis of Eu0.5La0.5FBiS2-xSex
• Bulk superconductivity induced by Se substitution in self-doped BiCh2-based compound CeOBiS2-xSex
• The upper critical field in the BiCh2-based superconductors CeOBiS1.7Se0.3 and PrO0.5F0.5BiS2-xSex (x = 0, 0.3)