Superconductivity by rare earth doping in the 1038-type compounds (Ca$_{1-x}$RE$_x$)$_{10}$(FeAs)$_{10}$(Pt$_3$As$_8$) with RE = Y, La-Nd, Sm-Lu

Tobias Stürzer; Gerald Derondeau; Dirk Johrendt

doi:10.1016/j.ssc.2014.10.007

paper

Superconductivity by rare earth doping in the 1038-type compounds (Ca $_{1 - x}$ RE $_{x}$ ) $_{10}$ (FeAs) $_{10}$ (Pt $_{3}$ As $_{8}$ ) with RE = Y, La-Nd, Sm-Lu

arXiv:1407.1007 · doi:10.1016/j.ssc.2014.10.007

Abstract

We report superconductivity in polycrystalline samples of the 1038-type compounds (Ca $_{1 - x}$ RE $_{x}$ ) $_{10}$ (FeAs) $_{10}$ (Pt $_{3}$ As $_{8}$ ) up to T $_{c}$ = 35 K with RE = Y, La-Nd, Sm, Gd-Lu. The critical temperatures are independent of the trivalent rare earth element used, yielding an universal T $_{c}$ ( $x$ ) phase diagram for electron doping in all these systems. The absence of superconductivity in Eu $^{2 +}$ doped samples, as well as the close resemblance of (Ca $_{1 - x}$ RE $_{x}$ ) $_{10}$ (FeAs) $_{10}$ (Pt $_{3}$ As $_{8}$ ) to the 1048 compound substantiate that the electron doping scenario in the RE-1038 and 1048 phases is completely analogous to other iron-based superconductors with simpler crystal structures.

12 pages, 8 figures

Superconductivity by rare earth doping in the 1038-type compounds (Ca $_{1 - x}$ RE $_{x}$ ) $_{10}$ (FeAs) $_{10}$ (Pt $_{3}$ As $_{8}$ ) with RE = Y, La-Nd, Sm-Lu

Abstract

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Superconductivity by rare earth doping in the 1038-type compounds (Ca1−x​REx​)10​(FeAs)10​(Pt3​As8​) with RE = Y, La-Nd, Sm-Lu

Abstract

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Cited by in corpus (3)

Superconductivity by rare earth doping in the 1038-type compounds (Ca $_{1 - x}$ RE $_{x}$ ) $_{10}$ (FeAs) $_{10}$ (Pt $_{3}$ As $_{8}$ ) with RE = Y, La-Nd, Sm-Lu