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Cited by 534

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The crystal structure of

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Tegel, M., Löhnert, C., Johrendt, D.·2010·Solid State Communications
DOI 10.1016/j.ssc.2010.01.002
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Abstract

Abstract The crystal structure of the superconductor FeSe 0.44 Te 0.56 was redetermined by high-resolution X-ray single crystal diffraction at 173 K (anti-PbO-type, P 4 / n m m , a = 3.7996 ( 2 ) , c = 5.9895 ( 6 ) A, R 1 = 0.022 , w R 2 = 0.041 , 173 F 2 ). Significantly different z -coordinates of tellurium and selenium at the 2 c site are clearly discernible and were refined to z Te = 0.2868 ( 3 ) and z Se = 0.2468 ( 7 ) . Thus the chalcogen heights differ by 0.24 A and the Fe–Se bonds are by 0.154 A shorter than the Fe–Te bonds, while three independent (Te, Se)–Fe–(Te, Se) bond angles occur. An elevated U 33 displacement parameter of the iron atom is suggestive of a slightly puckered Fe layer resulting from different combinations of Se or Te neighbors. Such strong disorder underlines the robustness of superconductivity against structural randomness and has not yet been considered in theoretical studies of this system.

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Metadata

Authors
Tegel, M., Löhnert, C., & Johrendt, D.
Venue
Solid State Communications
Publisher
Elsevier BV
Published
2010-03
Volume
150
Issue
9-10
Pages
383-385
ISSN
0038-1098 (ISSN-L)
DOI
10.1016/j.ssc.2010.01.002
OpenAlex
W1504760874
Cited by
534
References
0
FWCI
32.15
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: The crystal structure of. https://app.cochat.ai/papers/10.1016/j.ssc.2010.01.002
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Tegel, M., Löhnert, C., & Johrendt, D. (2010). The crystal structure of. Solid State Communications. https://doi.org/10.1016/j.ssc.2010.01.002

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