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FENG ZHU1,* , SHAN DONG1, GUANDONG YANG1
Fe-doped ZnS single-phase thin films showing ferromagnetism have been successfully prepared by metal-organic chemical vapor deposition (MOCVD) on GaAs substrates. Field and temperature dependent magnetization curve indicate that the sample with a Curie temperature Tc as high as 270K. The X-ray diffraction and atomic force microscopy (AFM) reveal that the thin films are well crystallized, Fe ions are substituted for Zn ions in the ZnS matrix and no trace of secondary phases or Fe clusters is detected. The experimental results are explained theoretically by spin-polarized density functional calculations within generalized-gradient approximations (GGA), which indicates the observed high Tc could be mainly ascribed to the p-d exchange coupling between Fe ions and host elements.
Fe-doped ZnS, First principles calculation, Ferromagnetic properties, High Curie temperature.
FENG ZHU, SHAN DONG, GUANDONG YANG, Ferromagnetic properties in Fe-doped ZnS thin films, Optoelectronics and Advanced Materials - Rapid Communications, 4, 12, December 2010, pp.2072-2075 (2010).
Submitted at: Nov. 22, 2010
Accepted at: Nov. 29, 2010
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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