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arXiv · 1407.3711

Coexistence of superconductivity and ferromagnetism in Sr0.5Ce0.5FBiS2

Lin Li·Yuke Li·Yuefeng Jin·Haoran Huang·Bin Chen·Xiaofeng Xu·Jianhui Dai·Li Zhang·Xiaojun Yang·Huifei Zhai·Guanghan Cao·Zhuan Xu
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Abstract

Through the combination of X-ray diffraction, electrical transport, magnetic susceptibility, and the heat capacity measurements, we studied the effect of Ce doping in the newly discovered SrFBiS${2}$ system. It is found that Sr${0.5}$Ce${0.5}$FBiS${2}$ undergoes a second-order transition below $7.5 K, followed by a superconducting transition with the critical temperature Tc=2.8 K. Our transport, specific heat and DC-magnetization results suggest the presence of bulk ferromagneticcorrelation of Ce ion below 7.5 K that coexist with superconductivity when the temperature is further lowered below 2.8 K.

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Lin Li, Yuke Li, Yuefeng Jin, Haoran Huang, Bin Chen, Xiaofeng Xu, Jianhui Dai, Li Zhang, Xiaojun Yang, Huifei Zhai, Guanghan Cao, Zhuan Xu. 2014-07-14. Coexistence of superconductivity and ferromagnetism in Sr0.5Ce0.5FBiS2. https://doi.org/10.1103/physrevb.91.014508

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