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Temperature-dependent dielectric measurements and structural properties of barium stannate (BaSnO3).

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Title: Temperature-dependent dielectric measurements and structural properties of barium stannate (BaSnO3).
Authors: Shrivastava, Shikha1,2 (AUTHOR), Nehra, Simran1,2 (AUTHOR), Kumar, Sumit1,2 (AUTHOR), Singh, Jasveer1 (AUTHOR), Rayaprol, Sudhindra3 (AUTHOR), Bhattacharya, Shovit4 (AUTHOR), Kumar, Ashok1,2 (AUTHOR), Sharma, Nita Dilawar1,2 (AUTHOR), Dogra, Anjana1,2 (AUTHOR) anjanad@nplindia.org
Source: Journal of Alloys & Compounds. Sep2023, Vol. 957, pN.PAG-N.PAG. 1p.
Subjects: Energy dispersive X-ray spectroscopy, Dielectric properties, Phase transitions, Pyrometry, Permittivity, Dielectric measurements
Abstract: Cubic perovskite BaSnO 3 , synthesized by solid-state reaction method, was structurally characterized using temperature-dependent X-ray and Raman spectroscopy studies along with room temperature neutron diffraction analysis. Here, we report the effect of temperature on the structural parameters of BaSnO 3 in correlation with dielectric properties. Sample homogeneity and elemental composition were studied by scanning electron microscopy and energy dispersive X-ray spectroscopy methods. The compound maintains cubic symmetry even at high temperatures and exhibits gradual increase in unit cell volume owing to thermal expansion. To understand high temperature phase transition, if any, and capacitance behavior, high temperature dielectric measurements were carried out. High value of dielectric constant was obtained at low frequencies as the temperature was increased, which may be due to the presence of oxygen vacancies or the lone-pair effect. • A collective study of dielectric properties in correlation with temperature dependent X-ray diffraction at high temperature. • Anomalously high value of dielectric constant was observed during heating. • Strain relaxation in the sample at high temperature is an important finding. • Hardening of Raman modes of vibration with increasing temperature. [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.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 163846119
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Temperature-dependent dielectric measurements and structural properties of barium stannate (BaSnO3).
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  Data: <searchLink fieldCode="AR" term="%22Shrivastava%2C+Shikha%22">Shrivastava, Shikha</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nehra%2C+Simran%22">Nehra, Simran</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kumar%2C+Sumit%22">Kumar, Sumit</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Singh%2C+Jasveer%22">Singh, Jasveer</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rayaprol%2C+Sudhindra%22">Rayaprol, Sudhindra</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bhattacharya%2C+Shovit%22">Bhattacharya, Shovit</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kumar%2C+Ashok%22">Kumar, Ashok</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sharma%2C+Nita+Dilawar%22">Sharma, Nita Dilawar</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dogra%2C+Anjana%22">Dogra, Anjana</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> anjanad@nplindia.org</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Alloys+%26+Compounds%22">Journal of Alloys & Compounds</searchLink>. Sep2023, Vol. 957, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Energy+dispersive+X-ray+spectroscopy%22">Energy dispersive X-ray spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Dielectric+properties%22">Dielectric properties</searchLink><br /><searchLink fieldCode="DE" term="%22Phase+transitions%22">Phase transitions</searchLink><br /><searchLink fieldCode="DE" term="%22Pyrometry%22">Pyrometry</searchLink><br /><searchLink fieldCode="DE" term="%22Permittivity%22">Permittivity</searchLink><br /><searchLink fieldCode="DE" term="%22Dielectric+measurements%22">Dielectric measurements</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Cubic perovskite BaSnO 3 , synthesized by solid-state reaction method, was structurally characterized using temperature-dependent X-ray and Raman spectroscopy studies along with room temperature neutron diffraction analysis. Here, we report the effect of temperature on the structural parameters of BaSnO 3 in correlation with dielectric properties. Sample homogeneity and elemental composition were studied by scanning electron microscopy and energy dispersive X-ray spectroscopy methods. The compound maintains cubic symmetry even at high temperatures and exhibits gradual increase in unit cell volume owing to thermal expansion. To understand high temperature phase transition, if any, and capacitance behavior, high temperature dielectric measurements were carried out. High value of dielectric constant was obtained at low frequencies as the temperature was increased, which may be due to the presence of oxygen vacancies or the lone-pair effect. • A collective study of dielectric properties in correlation with temperature dependent X-ray diffraction at high temperature. • Anomalously high value of dielectric constant was observed during heating. • Strain relaxation in the sample at high temperature is an important finding. • Hardening of Raman modes of vibration with increasing temperature. [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.2023.170458
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Energy dispersive X-ray spectroscopy
        Type: general
      – SubjectFull: Dielectric properties
        Type: general
      – SubjectFull: Phase transitions
        Type: general
      – SubjectFull: Pyrometry
        Type: general
      – SubjectFull: Permittivity
        Type: general
      – SubjectFull: Dielectric measurements
        Type: general
    Titles:
      – TitleFull: Temperature-dependent dielectric measurements and structural properties of barium stannate (BaSnO3).
        Type: main
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            NameFull: Shrivastava, Shikha
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            NameFull: Nehra, Simran
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            NameFull: Kumar, Sumit
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            NameFull: Singh, Jasveer
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            NameFull: Rayaprol, Sudhindra
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            NameFull: Bhattacharya, Shovit
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            NameFull: Kumar, Ashok
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            NameFull: Dogra, Anjana
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          Dates:
            – D: 25
              M: 09
              Text: Sep2023
              Type: published
              Y: 2023
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              Value: 09258388
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              Value: 957
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            – TitleFull: Journal of Alloys & Compounds
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