Concepedia

Magnetic phase diagram of Fe <sub>1.1</sub> Te <sub>1-x</sub> Se <sub>x</sub> : A comparative study with the stoichiometric superconducting FeTe <sub>1-x</sub> Se <sub>x</sub> system

P. L. Paulose, C. S. Yadav, Kiran M. Subhedar

Europhysics Letters (EPL) · 2010 · 31 citations · 8 references

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Abstract

We report a comparative study of the series Fe1.1Te1-xSex and the stoichiometric FeTe1-xSex to bring out the difference in their magnetic, superconducting and electronic properties. The Fe1.1Te1-xSex series is found to be magnetic and its microscopic properties are elucidated through Moessbauer spectroscopy. The magnetic phase diagram of Fe1.1Te1-xSex is traced out and it shows the emergence of spin-glass state when the antiferromagnetic state is destabilized by the Se substitution. The isomer shift and quadrupolar splitting obtained from the Moessbauer spectroscopy clearly brings out the electronic differences in these two series.

References

8

Iron-Based Layered Superconductor La[O<sub>1-</sub><i><sub>x</sub></i>F<i><sub>x</sub></i>]FeAs (<i>x</i> = 0.05−0.12) with <i>T</i><sub>c</sub> = 26 K

Yoichi Kamihara, Takumi Watanabe, Masahiro Hirano et al. · Journal of the American Chemical Society · 2008 · 7.9K citations

, , +13

Resistance Minimum in Dilute Magnetic Alloys

J. Kondo · Progress of Theoretical Physics · 1964 · 3.6K citations · Full text

, , +17

Superconductivity in the PbO-type structure α-FeSe

Fong-Chi Hsu, Jiu-Yong Luo, K. C. Yeh et al. · Proceedings of the National Academy of Sciences · 2008 · 2.9K citations · Full text

, , +16

Superconductivity at 43 K in SmFeAsO1-xF x

X. H. Chen, Tao Wu, Gang Wu et al. · Nature · 2008 · 1.7K citations · Full text

, , +12

Iron-Based Layered Superconductor:  LaOFeP

Yoichi Kamihara, Hidenori Hiramatsu, Masahiro Hirano et al. · Journal of the American Chemical Society · 2006 · 1.5K citations

, , +17