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Magnetization in Nanocrystalline PLD Zinc Ferrite Thin Films Deposited on Fused Quartz Substrate

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Abstract

The nanocrystalline zinc ferrite (ZnFe2 O 4) thin films were grown on the fused quartz substrate using pulsed laser deposition. The effects of atmospheric conditions on structural, magnetic, and morphological properties have been systematically studied using X-ray diffraction, vibrating sample magnetometry, and atomic force microscopy. The films showed textured growth of zinc ferrite for the substrate temperatures at ≥ 600 °C irrespective of the ambient environment. Interestingly, thin films of zinc ferrite showed a magnetic hysteresis loop in contrast to the paramagnetic nature of their bulk counterpart. The value of saturation magnetization (4π M s) increased from 130 to 360 G when the substrate temperature was increased from room temperature (RT) to 800 °C in the oxygen atmosphere. In the absence of oxygen pressure, the value of 4π M s is observed to be 330 G for the film deposited at RT and found to increase to a value of 670 G when the film is deposited at 400 °C and the maximum value of 2580 G is observed for the film deposited at 700 °C. However, the value of 4π M s of 800 °C dropped down to 2000 G.

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Acknowledgments

The authors acknowledge the Centre for Interdisciplinary Research at MNNIT Allahabad for the experimental facilities. NK also acknowledges DST for the financial support (SR/S2/HEP-07/2010).

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Authors and Affiliations

  1. Department of Physics, Motilal Nehru National Institute of Technology Allahabad, Allahabad, 211004, India

    Aashish Jha, Naresh Kumar, Mohit Sahni, Amit Srivastava & Sanjay Chaubey

  2. Department of Physics, Sharda University, Plot No. 32-34, Knowledge Park III, Greater Noida, 201306, India

    Mohit Sahni

  3. Department of Electronics and Communication Engineering, Motilal Nehru National Institute of Technology Allahabad, Allahabad, 211004, India

    Jyotirmay Dwivedi

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  1. Aashish Jha
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  2. Naresh Kumar
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  4. Amit Srivastava
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  6. Sanjay Chaubey
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Correspondence to Naresh Kumar.

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Jha, A., Kumar, N., Sahni, M. et al. Magnetization in Nanocrystalline PLD Zinc Ferrite Thin Films Deposited on Fused Quartz Substrate. J Supercond Nov Magn 31, 107–116 (2018). https://doi.org/10.1007/s10948-017-4177-3

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  • DOI: https://doi.org/10.1007/s10948-017-4177-3

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