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Crystal structure, spectroscopic, magnetic and dielectric studies of new doped ceramic ZrTe3O8:7%CuO.

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Title: Crystal structure, spectroscopic, magnetic and dielectric studies of new doped ceramic ZrTe3O8:7%CuO.
Authors: Koubaa, M.1 (AUTHOR) mariem_koubaa123@yahoo.fr, Karray, R.1 (AUTHOR), Bessais, L.2 (AUTHOR), Kabadou, A.1 (AUTHOR)
Source: Journal of Alloys & Compounds. Jun2020, Vol. 825, pN.PAG-N.PAG. 1p.
Subjects: Crystal structure, Transparent ceramics, Nonbonding electron pairs, Dielectrics, Solid state electronics, Polymorphism (Crystallography), Dielectric properties
Abstract: In this study, calcined ZrTe 3 O 8 powder mixed with 7%wt of CuO was sintered at 750 °C. The new doped ceramic ZrTe 3 O 8 :7%CuO was synthesized using solid state reaction method and was studied with X-ray diffraction (XRD). At room temperature, the title compound crystallizes in cubic space group Ia 3 ‾ , with lattice parameter a = 11.328(3) Å, and exhibits a complex network of interconnected closed chains built up of TeO 4 E (E = electronic lone pair of Te (IV) atoms). The Zr/CuO 6 octahedra are inserted into these chains ensuring the stability of the structure by Zr/Cu –O–Te bonding contacts. IR and Raman spectroscopic study are employed as means to obtain preliminary structural information and confirms the presence of the ZrO 6 and TeO 4 E groups. Optical properties of the ceramic were explored by using UV–Vis absorption. The magnetic results reveal the appearance of a weak ferromagnetic behavior at low temperature (T C = 46.172 K). In addition, dielectric data were analyzed using real and imaginary permittivity ε ' and ε " respectively, the tan (δ) and the electrical modulus ( M ' and M″) for the sample ZrTe 3 O 8 :7%CuO at various frequencies. The Z ' and Z " versus frequency plots are well fitted to an equivalent circuit model composed of a series combination of two parallel combinations of resistance Ri and constant phase element CPEi. • The ceramic crystallized ain the cubic fluorite structure (Ia 3 ‾). • The Zr/CuO 6 octahedra are inserted into TeO 4 E chains ensuring the stability of the structure by Zr/Cu –O–Te bonding contacts. • The magnetic results reveal the appearance of a weak ferromagnetic behavior at low temperature (T C = 46.172 K). • The equivalent circuit model is composed of a series combination of two parallel combinations of resistance Ri and constant phase element CPEi. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. 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
  Group: Ti
  Data: Crystal structure, spectroscopic, magnetic and dielectric studies of new doped ceramic ZrTe3O8:7%CuO.
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  Data: <searchLink fieldCode="AR" term="%22Koubaa%2C+M%2E%22">Koubaa, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> mariem_koubaa123@yahoo.fr</i><br /><searchLink fieldCode="AR" term="%22Karray%2C+R%2E%22">Karray, R.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bessais%2C+L%2E%22">Bessais, L.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kabadou%2C+A%2E%22">Kabadou, A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Alloys+%26+Compounds%22">Journal of Alloys & Compounds</searchLink>. Jun2020, Vol. 825, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Crystal+structure%22">Crystal structure</searchLink><br /><searchLink fieldCode="DE" term="%22Transparent+ceramics%22">Transparent ceramics</searchLink><br /><searchLink fieldCode="DE" term="%22Nonbonding+electron+pairs%22">Nonbonding electron pairs</searchLink><br /><searchLink fieldCode="DE" term="%22Dielectrics%22">Dielectrics</searchLink><br /><searchLink fieldCode="DE" term="%22Solid+state+electronics%22">Solid state electronics</searchLink><br /><searchLink fieldCode="DE" term="%22Polymorphism+%28Crystallography%29%22">Polymorphism (Crystallography)</searchLink><br /><searchLink fieldCode="DE" term="%22Dielectric+properties%22">Dielectric properties</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this study, calcined ZrTe 3 O 8 powder mixed with 7%wt of CuO was sintered at 750 °C. The new doped ceramic ZrTe 3 O 8 :7%CuO was synthesized using solid state reaction method and was studied with X-ray diffraction (XRD). At room temperature, the title compound crystallizes in cubic space group Ia 3 ‾ , with lattice parameter a = 11.328(3) Å, and exhibits a complex network of interconnected closed chains built up of TeO 4 E (E = electronic lone pair of Te (IV) atoms). The Zr/CuO 6 octahedra are inserted into these chains ensuring the stability of the structure by Zr/Cu –O–Te bonding contacts. IR and Raman spectroscopic study are employed as means to obtain preliminary structural information and confirms the presence of the ZrO 6 and TeO 4 E groups. Optical properties of the ceramic were explored by using UV–Vis absorption. The magnetic results reveal the appearance of a weak ferromagnetic behavior at low temperature (T C = 46.172 K). In addition, dielectric data were analyzed using real and imaginary permittivity ε ' and ε " respectively, the tan (δ) and the electrical modulus ( M ' and M″) for the sample ZrTe 3 O 8 :7%CuO at various frequencies. The Z ' and Z " versus frequency plots are well fitted to an equivalent circuit model composed of a series combination of two parallel combinations of resistance Ri and constant phase element CPEi. • The ceramic crystallized ain the cubic fluorite structure (Ia 3 ‾). • The Zr/CuO 6 octahedra are inserted into TeO 4 E chains ensuring the stability of the structure by Zr/Cu –O–Te bonding contacts. • The magnetic results reveal the appearance of a weak ferromagnetic behavior at low temperature (T C = 46.172 K). • The equivalent circuit model is composed of a series combination of two parallel combinations of resistance Ri and constant phase element CPEi. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. 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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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1016/j.jallcom.2020.153974
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Crystal structure
        Type: general
      – SubjectFull: Transparent ceramics
        Type: general
      – SubjectFull: Nonbonding electron pairs
        Type: general
      – SubjectFull: Dielectrics
        Type: general
      – SubjectFull: Solid state electronics
        Type: general
      – SubjectFull: Polymorphism (Crystallography)
        Type: general
      – SubjectFull: Dielectric properties
        Type: general
    Titles:
      – TitleFull: Crystal structure, spectroscopic, magnetic and dielectric studies of new doped ceramic ZrTe3O8:7%CuO.
        Type: main
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            NameFull: Koubaa, M.
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            NameFull: Karray, R.
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            NameFull: Bessais, L.
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            NameFull: Kabadou, A.
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            – D: 05
              M: 06
              Text: Jun2020
              Type: published
              Y: 2020
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              Value: 09258388
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              Value: 825
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            – TitleFull: Journal of Alloys & Compounds
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