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Structure, Morphology and Electrical/Magnetic Properties of Ni-Mg Nano-Ferrites from a New Perspective.

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Title: Structure, Morphology and Electrical/Magnetic Properties of Ni-Mg Nano-Ferrites from a New Perspective.
Authors: Mostafa, Maha1 (AUTHOR) maha_mostafa1990@yahoo.com, Saleh, Oday1 (AUTHOR) audaysalih@gmail.com, Henaish, Ahmed Maher1,2 (AUTHOR) ahmed.henaish@science.tanta.edu.eg, Abd El-Kaream, Samir Ali3 (AUTHOR) samir_ali852006@yahoo.com, Ghazy, Ryad1 (AUTHOR) riad.ghazi@science.tanta.edu.eg, Hemeda, Osama M.1 (AUTHOR) omhemeda@yahoo.co.uk, Dorgham, Ali M.1,4 (AUTHOR) alimagdy1@gmail.com, Al-Ghamdi, Hanan5 (AUTHOR) hmalghmdi@pnu.edu.sa, Almuqrin, Aljawhara H.5 (AUTHOR) ahalmoqren@pnu.edu.sa, Sayyed, M. I.6,7 (AUTHOR) dr.mabualssayed@gmail.com, Trukhanov, Sergei V.8 (AUTHOR) sv_truhanov@mail.ru, Trukhanova, Ekaterina L.8 (AUTHOR) el_trukhanova@mail.ru, Trukhanov, Alex V.8,9,10 (AUTHOR), Zhou, Di11 (AUTHOR) zhoudi1220@gmail.com, Darwish, Moustafa A.1 (AUTHOR) mostafa_ph@science.tanta.edu.eg
Source: Nanomaterials (2079-4991). Apr2022, Vol. 12 Issue 7, p1045-1045. 28p.
Subjects: Magnetic permeability, Magnetic anisotropy, Permeability, Curie temperature, Magnetic properties, Charge carrier mobility
Abstract: Using the auto combustion flash method, Ni 1 − x + 2 Mg x + 2 Fe 2 + 3 O 4 (x = 0, 0.2, 0.6, 0.8 and 1) nano-ferrites were synthesized. All samples were thermally treated at 973 K for 3 h. The structural analysis for the synthesized samples was performed using XRD, high-resolution transmission electron microscopy (HRTEM), and FTIR. Scanning electron microscopy (SEM) was undertaken to explore the surface morphology of all the samples. The thermal stability of these samples was investigated using thermogravimetric analysis (TGA). XRD data show the presence of a single spinel phase for all the prepared samples. The intensity of the principal peak of the spinel phase decreases as Mg content increases, showing that Mg delays crystallinity. The Mg content raised the average grain size (D) from 0.084 μm to 0.1365 μm. TGA shows two stages of weight loss variation. The vibrating sample magnetometer (VSM) measurement shows that magnetic parameters, such as initial permeability (μi) and saturation magnetization (Ms), decay with rising Mg content. The permeability and magnetic anisotropy at different frequencies and temperatures were studied to show the samples' magnetic behavior and determine the Curie temperature (TC), which depends on the internal structure. The electrical resistivity behavior shows the semi-conductivity trend of the samples. Finally, the dielectric constant increases sharply at high temperatures, explained by the increased mobility of charge carriers, and decreases with increasing frequency. [ABSTRACT FROM AUTHOR]
Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
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  Data: Structure, Morphology and Electrical/Magnetic Properties of Ni-Mg Nano-Ferrites from a New Perspective.
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  Data: <searchLink fieldCode="AR" term="%22Mostafa%2C+Maha%22">Mostafa, Maha</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> maha_mostafa1990@yahoo.com</i><br /><searchLink fieldCode="AR" term="%22Saleh%2C+Oday%22">Saleh, Oday</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> audaysalih@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Henaish%2C+Ahmed+Maher%22">Henaish, Ahmed Maher</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> ahmed.henaish@science.tanta.edu.eg</i><br /><searchLink fieldCode="AR" term="%22Abd+El-Kaream%2C+Samir+Ali%22">Abd El-Kaream, Samir Ali</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> samir_ali852006@yahoo.com</i><br /><searchLink fieldCode="AR" term="%22Ghazy%2C+Ryad%22">Ghazy, Ryad</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> riad.ghazi@science.tanta.edu.eg</i><br /><searchLink fieldCode="AR" term="%22Hemeda%2C+Osama+M%2E%22">Hemeda, Osama M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> omhemeda@yahoo.co.uk</i><br /><searchLink fieldCode="AR" term="%22Dorgham%2C+Ali+M%2E%22">Dorgham, Ali M.</searchLink><relatesTo>1,4</relatesTo> (AUTHOR)<i> alimagdy1@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Al-Ghamdi%2C+Hanan%22">Al-Ghamdi, Hanan</searchLink><relatesTo>5</relatesTo> (AUTHOR)<i> hmalghmdi@pnu.edu.sa</i><br /><searchLink fieldCode="AR" term="%22Almuqrin%2C+Aljawhara+H%2E%22">Almuqrin, Aljawhara H.</searchLink><relatesTo>5</relatesTo> (AUTHOR)<i> ahalmoqren@pnu.edu.sa</i><br /><searchLink fieldCode="AR" term="%22Sayyed%2C+M%2E+I%2E%22">Sayyed, M. I.</searchLink><relatesTo>6,7</relatesTo> (AUTHOR)<i> dr.mabualssayed@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Trukhanov%2C+Sergei+V%2E%22">Trukhanov, Sergei V.</searchLink><relatesTo>8</relatesTo> (AUTHOR)<i> sv_truhanov@mail.ru</i><br /><searchLink fieldCode="AR" term="%22Trukhanova%2C+Ekaterina+L%2E%22">Trukhanova, Ekaterina L.</searchLink><relatesTo>8</relatesTo> (AUTHOR)<i> el_trukhanova@mail.ru</i><br /><searchLink fieldCode="AR" term="%22Trukhanov%2C+Alex+V%2E%22">Trukhanov, Alex V.</searchLink><relatesTo>8,9,10</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhou%2C+Di%22">Zhou, Di</searchLink><relatesTo>11</relatesTo> (AUTHOR)<i> zhoudi1220@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Darwish%2C+Moustafa+A%2E%22">Darwish, Moustafa A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> mostafa_ph@science.tanta.edu.eg</i>
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  Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Apr2022, Vol. 12 Issue 7, p1045-1045. 28p.
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  Data: <searchLink fieldCode="DE" term="%22Magnetic+permeability%22">Magnetic permeability</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+anisotropy%22">Magnetic anisotropy</searchLink><br /><searchLink fieldCode="DE" term="%22Permeability%22">Permeability</searchLink><br /><searchLink fieldCode="DE" term="%22Curie+temperature%22">Curie temperature</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+properties%22">Magnetic properties</searchLink><br /><searchLink fieldCode="DE" term="%22Charge+carrier+mobility%22">Charge carrier mobility</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Using the auto combustion flash method, Ni 1 − x + 2 Mg x + 2 Fe 2 + 3 O 4 (x = 0, 0.2, 0.6, 0.8 and 1) nano-ferrites were synthesized. All samples were thermally treated at 973 K for 3 h. The structural analysis for the synthesized samples was performed using XRD, high-resolution transmission electron microscopy (HRTEM), and FTIR. Scanning electron microscopy (SEM) was undertaken to explore the surface morphology of all the samples. The thermal stability of these samples was investigated using thermogravimetric analysis (TGA). XRD data show the presence of a single spinel phase for all the prepared samples. The intensity of the principal peak of the spinel phase decreases as Mg content increases, showing that Mg delays crystallinity. The Mg content raised the average grain size (D) from 0.084 μm to 0.1365 μm. TGA shows two stages of weight loss variation. The vibrating sample magnetometer (VSM) measurement shows that magnetic parameters, such as initial permeability (μi) and saturation magnetization (Ms), decay with rising Mg content. The permeability and magnetic anisotropy at different frequencies and temperatures were studied to show the samples' magnetic behavior and determine the Curie temperature (TC), which depends on the internal structure. The electrical resistivity behavior shows the semi-conductivity trend of the samples. Finally, the dielectric constant increases sharply at high temperatures, explained by the increased mobility of charge carriers, and decreases with increasing frequency. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3390/nano12071045
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      – Code: eng
        Text: English
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        PageCount: 28
        StartPage: 1045
    Subjects:
      – SubjectFull: Magnetic permeability
        Type: general
      – SubjectFull: Magnetic anisotropy
        Type: general
      – SubjectFull: Permeability
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      – SubjectFull: Curie temperature
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      – SubjectFull: Magnetic properties
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      – SubjectFull: Charge carrier mobility
        Type: general
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      – TitleFull: Structure, Morphology and Electrical/Magnetic Properties of Ni-Mg Nano-Ferrites from a New Perspective.
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