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Microwave Dielectric Permittivity of Nanostructured RMn 2 O 5 Manganate, R 2 Ti 2 O 7 Titanate, and LiCoPO 4 and LiNi 0.5 Co 0.5 PO 4 Orthophosphate Composites.

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Title: Microwave Dielectric Permittivity of Nanostructured RMn 2 O 5 Manganate, R 2 Ti 2 O 7 Titanate, and LiCoPO 4 and LiNi 0.5 Co 0.5 PO 4 Orthophosphate Composites.
Authors: Rinkevich, Anatoly B.1 (AUTHOR) rin@imp.uran.ru, Perov, Dmitry V.1 (AUTHOR), Kuznetsov, Evgeny A.1 (AUTHOR), Stenina, Maria S.1 (AUTHOR)
Source: Nanomaterials (2079-4991). Jul2025, Vol. 15 Issue 13, p995. 18p.
Subjects: Permittivity, Nanocomposite materials, Manganates, Titanates, Microwaves, Relaxation phenomena, Frequency response, Orthophosphates
Abstract: The complex dielectric permittivity has been studied with the waves of millimeter wavelength for rare earth manganate and titanate and LiCoPO4 and LiNi0.5Co0.5PO4 orthophosphate composites. The measurements are carried out at frequencies of 26 to 38 GHz via measurements of transmission and reflection coefficients through a plate. A special method on how to extract the real and imaginary parts of dielectric permittivity is applied. Discussion is conducted on a nonmonotonic type of the frequency dependences for both real and imaginary parts of permittivity, and it has been shown that relaxation is non-Debye. The Cole–Cole, Havriliak–Negami, and Kohlrausch–Williams–Watts models cannot also explain the nonmonotonic frequency dependence of the real part of dielectric permittivity. Investigation of the structure and phase composition of nanocomposites has been carried out. [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: Microwave Dielectric Permittivity of Nanostructured RMn 2 O 5 Manganate, R 2 Ti 2 O 7 Titanate, and LiCoPO 4 and LiNi 0.5 Co 0.5 PO 4 Orthophosphate Composites.
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  Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Jul2025, Vol. 15 Issue 13, p995. 18p.
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  Data: <searchLink fieldCode="DE" term="%22Permittivity%22">Permittivity</searchLink><br /><searchLink fieldCode="DE" term="%22Nanocomposite+materials%22">Nanocomposite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Manganates%22">Manganates</searchLink><br /><searchLink fieldCode="DE" term="%22Titanates%22">Titanates</searchLink><br /><searchLink fieldCode="DE" term="%22Microwaves%22">Microwaves</searchLink><br /><searchLink fieldCode="DE" term="%22Relaxation+phenomena%22">Relaxation phenomena</searchLink><br /><searchLink fieldCode="DE" term="%22Frequency+response%22">Frequency response</searchLink><br /><searchLink fieldCode="DE" term="%22Orthophosphates%22">Orthophosphates</searchLink>
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  Data: The complex dielectric permittivity has been studied with the waves of millimeter wavelength for rare earth manganate and titanate and LiCoPO4 and LiNi0.5Co0.5PO4 orthophosphate composites. The measurements are carried out at frequencies of 26 to 38 GHz via measurements of transmission and reflection coefficients through a plate. A special method on how to extract the real and imaginary parts of dielectric permittivity is applied. Discussion is conducted on a nonmonotonic type of the frequency dependences for both real and imaginary parts of permittivity, and it has been shown that relaxation is non-Debye. The Cole–Cole, Havriliak–Negami, and Kohlrausch–Williams–Watts models cannot also explain the nonmonotonic frequency dependence of the real part of dielectric permittivity. Investigation of the structure and phase composition of nanocomposites has been carried out. [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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      – Type: doi
        Value: 10.3390/nano15130995
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 18
        StartPage: 995
    Subjects:
      – SubjectFull: Permittivity
        Type: general
      – SubjectFull: Nanocomposite materials
        Type: general
      – SubjectFull: Manganates
        Type: general
      – SubjectFull: Titanates
        Type: general
      – SubjectFull: Microwaves
        Type: general
      – SubjectFull: Relaxation phenomena
        Type: general
      – SubjectFull: Frequency response
        Type: general
      – SubjectFull: Orthophosphates
        Type: general
    Titles:
      – TitleFull: Microwave Dielectric Permittivity of Nanostructured RMn 2 O 5 Manganate, R 2 Ti 2 O 7 Titanate, and LiCoPO 4 and LiNi 0.5 Co 0.5 PO 4 Orthophosphate Composites.
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          Name:
            NameFull: Rinkevich, Anatoly B.
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            NameFull: Perov, Dmitry V.
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            NameFull: Kuznetsov, Evgeny A.
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            NameFull: Stenina, Maria S.
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            – D: 01
              M: 07
              Text: Jul2025
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              Y: 2025
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