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Ferromagnetism in Gd-doped CdS dilute magnetic semiconducting nanorods

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Abstract

Cd x Gd1−x S (x = 0–0.15) nanorods have been synthesized by solvothermal technique. X-ray diffraction study reveals that pure and Gd-doped CdS nanorods exhibits hexagonal wurtzite structure. Transmission electron microscopy reveals nanorods like morphology of synthesized CdS having 14 and 26 nm size of pure and 15 % doped CdS nanorods. UV–Visible absorption study confirms the blue shift in the energy band energy due to the quantum confinement effects. Photoluminescence spectra confirm the defect free nature of the synthesized nanorods with peaks emerging around 528 and 540 nm due to the green emission. The magnetic study shows that the pure and Gd-doped CdS nanorods exhibits ferromagnetic character and the magnetisation increased by five times from 0.074 to 0.422 emu/g upon Gd-doping.

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Acknowledgments

One of the authors Kamaldeep Kaur gratefully acknowledges UGC, Government of India, for awarding her Maulana Azad National Fellowship fellowship to carry out this research work. Gurmeet Singh Lotey acknowledges Department of Science and Technology (DST), Government of India, for awarding him the INSPIRE fellowship.

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Authors and Affiliations

  1. Nano Research Lab, School of Physics and Materials Science, Thapar University, Patiala, 147004, India

    Kamaldeep Kaur, Gurmeet Singh Lotey & N. K. Verma

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  1. Kamaldeep Kaur
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  2. Gurmeet Singh Lotey
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  3. N. K. Verma
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Correspondence to Gurmeet Singh Lotey.

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Kaur, K., Lotey, G.S. & Verma, N.K. Ferromagnetism in Gd-doped CdS dilute magnetic semiconducting nanorods. J Mater Sci: Mater Electron 25, 311–316 (2014). https://doi.org/10.1007/s10854-013-1587-2

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  • DOI: https://doi.org/10.1007/s10854-013-1587-2

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