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Effects of Ru Doping on the Transport Behavior and Superconducting Transition Temperature of NdFeAsO0.89F0.11

Source: J. Phys. Soc. Jpn. 79, 023702 (2010); doi:10.1143/JPSJ.79.023702

Issue Date: 1 March 2010

PUBLICATION DATA
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Sang Chul Lee
Department of Physics, Division of Material Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan

Erika Satomi
Department of Physics, Division of Material Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan

Yoshiaki Kobayashi
Department of Physics, Division of Material Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
JST, TRIP, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan

Masatoshi Sato
Department of Physics, Division of Material Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
JST, TRIP, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
The transport behavior and superconducting transition temperature $T_{\text{c}}$ of NdFe1-yRuyAsO0.89F0.11 have been studied for various $y$ values. Because Ru impurities are isoelectronic to host Fe atoms, we basically expect that the number of electrons does not change with $y$, at least in the region of small $y$ values. The results indicate that the rate of $T_{\text{c}}$ suppression by Ru atoms is too small to be explained by the pair breaking effect of nonmagnetic impurities expected for the $S_{\pm}$ symmetry, confirming our previous results for Co doping. ©2010

(As supplied by publisher.)

Permalink: http://dx.doi.org/10.1143/JPSJ.79.023702
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