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Structural evolution of Ce1− x Gd x FeAsO0.84F0.16 superconductors
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10.1063/1.3565408
/content/aip/journal/jap/109/7/10.1063/1.3565408
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/7/10.1063/1.3565408

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Structural evolution of Ce1− x Gd x FeAsO0.84F0.16 as a function of Gd content x. (a) Schematic diagram defining the Ce/Gd-O/F-Ce/Gd and As-Fe-As blocks. (b) Lattice parameters. (c) Ce/Gd-O/F and Ce/Gd-As distances. (d) Fe-Fe distance, Ce/Gd-O/F-Ce/Gd and As-Fe-As block sizes. (e) Fe-As-Fe angles as defined in (a) as a function of Gd content. The lines are guides to the eye.

Image of FIG. 2.
FIG. 2.

(Color online) Magnetization loop M(H) at 3 K for CeFeAsO0.84F0.16. Inset shows the initial isothermal magnetization curve at 3 K for the same sample.

Image of FIG. 3.
FIG. 3.

(Color online) Superconducting transition temperature vs room-temperature twofold Pn-Fe-Pn angle for selected iron pnictides. Vertical line represents the angle for an undistorted Fe-centered Pn 4 tetrahedron.

Tables

Generic image for table
Table I.

Refined structure parameters of Ce1−xGdxFeAsO0.84F0.16 with x = 0, 0.3, 0.4, 0.5, and 0.7 at room temperature.

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/content/aip/journal/jap/109/7/10.1063/1.3565408
2011-04-08
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Structural evolution of Ce1−xGdxFeAsO0.84F0.16 superconductors
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/7/10.1063/1.3565408
10.1063/1.3565408
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