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The Synthesis and Characterization of LiFeAs and NaFeAs

Autor: Chu, C. W., Chen, F., Gooch, M., Guloy, A. M., Lorenz, B., Lv, B., Sasmal, K., Tang, Z. J., Tapp, J. H., Xue, Y. Y.

Publikováno v: Physica C 469, 326 (2009)

The newest homologous series of superconducting As-pnictides, LiFeAs (Li111) and NaFeAs (Na111) have been synthesized and investigated. Both crystallize with the layered tetragonal anti-PbFCl-type structure in P4/nmm space group. Polycrystalline samp

Externí odkaz: http://arxiv.org/abs/0902.0806

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Pressure shift of the superconducting T_c of LiFeAs

Autor: Gooch, M., Lv, B., Tapp, J. H., Tang, Z., Lorenz, B., Guloy, A. M., Chu, P. C. W.

Publikováno v: EPL 85, 27005 (2009)

The effect of hydrostatic pressure on the superconductivity in LiFeAs is investigated up to 1.8 GPa. The superconducting transition temperature, T_c, decreases linearly with pressure at a rate of 1.5 K/GPa. The negative pressure coefficient of T_c an

Externí odkaz: http://arxiv.org/abs/0901.4468

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