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57Fe Mössbauer study of Zn doped cobalt based (Co2Y) Y-type Ba0.5Sr1.5Co2Fe12O22 hexaferrites

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Abstract

In the present work, polycrystalline Y-type Ba0.5Sr1.5Co2−xZnxFe12O22 (X = 0, 0.5, 1 & 2) hexa-ferrites prepared by the sol-gel auto combustion method are investigated by x-ray diffraction (XRD), 57Fe Mössbauer spectroscopy (MS) and magnetization measurements. XRD data confirms the single-phase formation for x = 0 and 0.5; however, with further increase in Zn concentration secondary phases are observed. The in-field Mössbauer data measured at low temperature (5K) indicates that there is a re-distribution of Fe3+ ions in the studied samples, with the substituted Zn2+ preferentially going to 6CIV, 6CIV ∗ sites.

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Acknowledgements

The UGC-DAE CSR, Indore, India is acknowledged for the financial support in the form of a collaborative research scheme (CRS).

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Authors and Affiliations

  1. Physics Dept., University College of Science, Osmania University, Hyderabad, 500007, India

    M. Manendar, Ch. Gopal Reddy, M. Sreenath Reddy & P. Yadagiri Reddy

  2. Defense Metallurgical Research Laboratory, Hyderabad, 500058, India

    Manivel Raja

  3. UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indore, 452001, India

    V. Raghavendra Reddy

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  1. M. Manendar
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  2. Ch. Gopal Reddy
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  3. Manivel Raja
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  4. M. Sreenath Reddy
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  5. P. Yadagiri Reddy
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  6. V. Raghavendra Reddy
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Correspondence to V. Raghavendra Reddy.

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This article is part of the Topical Collection on Proceedings of the International Conference on the Applications of the Mössbauer Effect (ICAME 2021), 5-10 September 2021, Brasov, Romania

Edited by Victor Kuncser

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Manendar, M., Reddy, C.G., Raja, M. et al. 57Fe Mössbauer study of Zn doped cobalt based (Co2Y) Y-type Ba0.5Sr1.5Co2Fe12O22 hexaferrites. Hyperfine Interact 242, 40 (2021). https://doi.org/10.1007/s10751-021-01752-4

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