Abstract
We report discovery of ferromagnetism in (LaCa)(ZnMn)SbO isostructural to the well-studied iron-based superconductor LaFeAs(O1−x F x ). Spin is induced by partial substitution of Mn2+ for Zn2+, while charge is induced by substitution of Ca2+ for La3+ within the parent compound LaZnSbO. Ferromagnetism with Curie temperature (T C) is observed up to 40 K at the spin doping 0.15 by introducing Mn2+ into the Zn2+ sites for (La0.95Ca0.05)(Zn1−x Mn x )SbO. The Hall coefficient measurement indicates p-type carrier for (La0.95Ca0.05)(Zn0.9Mn0.1)SbO with concentration of n∼1020 cm−3 showing anomalous Hall effect below T C.
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Han, W., Zhao, K., Wang, X. et al. Diluted ferromagnetic semiconductor (LaCa)(ZnMn)SbO isostructural to “1111” type iron pnictide superconductors. Sci. China Phys. Mech. Astron. 56, 2026–2030 (2013). https://doi.org/10.1007/s11433-013-5320-1
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DOI: https://doi.org/10.1007/s11433-013-5320-1