Dependence of Electrical and Thermal Properties on Applied Electric Field in La Doped Barium Titanate Displacive Ferroelectric Perovskites

Dushyant Pradeep; Jagdev Singh

doi:doi:10.11648/j.cm.20210502.11

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Dependence of Electrical and Thermal Properties on Applied Electric Field in La Doped Barium Titanate Displacive Ferroelectric Perovskites

Dushyant Pradeep, Jagdev Singh

Published in Composite Materials (Volume 5, Issue 2)

Received: 6 April 2021 Accepted: 12 May 2021 Published: 31 August 2021

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Abstract

The high dielectric constant and low dielectric loss are the most desirable characteristics of the dielectric materials. Considering the hazardous nature of lead-based ceramics, many research groups have paid great attention to the research on non-lead-based perovskites. The effect of the electric field on the electrical and thermal properties of the Lanthanum doped barium Titanate, one of the main important members of the ferroelectric Perovskites family is studied using the method of double time thermal Green’s function and Kubo formalism. With the help of the Silverman-Joseph Hamiltonian a general expression is derived. The electric field and temperature dependent dielectric constant and specific heat capacity of Ba_1-xLa_xTiO₃ crystal has been investigated. The dielectric constant decreases with increase in temperature and applied electric field component. The variation shows a consequence of the gradual decrease in the Curie temperature of the doped material with the increase in defect concentrations. The results also compared with some previous studies done by the author and other workers on similar other materials.

Published in	Composite Materials (Volume 5, Issue 2)
DOI	10.11648/j.cm.20210502.11
Page(s)	30-36
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Ferroelectrics, Perovskites, Curie Temperature, Green’s Function, Kubo Formalism

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Dushyant Pradeep, Jagdev Singh. (2021). Dependence of Electrical and Thermal Properties on Applied Electric Field in La Doped Barium Titanate Displacive Ferroelectric Perovskites. Composite Materials, 5(2), 30-36. https://doi.org/10.11648/j.cm.20210502.11

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ACS Style

Dushyant Pradeep; Jagdev Singh. Dependence of Electrical and Thermal Properties on Applied Electric Field in La Doped Barium Titanate Displacive Ferroelectric Perovskites. Compos. Mater. 2021, 5(2), 30-36. doi: 10.11648/j.cm.20210502.11

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AMA Style

Dushyant Pradeep, Jagdev Singh. Dependence of Electrical and Thermal Properties on Applied Electric Field in La Doped Barium Titanate Displacive Ferroelectric Perovskites. Compos Mater. 2021;5(2):30-36. doi: 10.11648/j.cm.20210502.11

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@article{10.11648/j.cm.20210502.11,
  author = {Dushyant Pradeep and Jagdev Singh},
  title = {Dependence of Electrical and Thermal Properties on Applied Electric Field in La Doped Barium Titanate Displacive Ferroelectric Perovskites},
  journal = {Composite Materials},
  volume = {5},
  number = {2},
  pages = {30-36},
  doi = {10.11648/j.cm.20210502.11},
  url = {https://doi.org/10.11648/j.cm.20210502.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.cm.20210502.11},
  abstract = {The high dielectric constant and low dielectric loss are the most desirable characteristics of the dielectric materials. Considering the hazardous nature of lead-based ceramics, many research groups have paid great attention to the research on non-lead-based perovskites. The effect of the electric field on the electrical and thermal properties of the Lanthanum doped barium Titanate, one of the main important members of the ferroelectric Perovskites family is studied using the method of double time thermal Green’s function and Kubo formalism. With the help of the Silverman-Joseph Hamiltonian a general expression is derived. The electric field and temperature dependent dielectric constant and specific heat capacity of Ba1-xLaxTiO3 crystal has been investigated. The dielectric constant decreases with increase in temperature and applied electric field component. The variation shows a consequence of the gradual decrease in the Curie temperature of the doped material with the increase in defect concentrations. The results also compared with some previous studies done by the author and other workers on similar other materials.},
 year = {2021}
}

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TY  - JOUR
T1  - Dependence of Electrical and Thermal Properties on Applied Electric Field in La Doped Barium Titanate Displacive Ferroelectric Perovskites
AU  - Dushyant Pradeep
AU  - Jagdev Singh
Y1  - 2021/08/31
PY  - 2021
N1  - https://doi.org/10.11648/j.cm.20210502.11
DO  - 10.11648/j.cm.20210502.11
T2  - Composite Materials
JF  - Composite Materials
JO  - Composite Materials
SP  - 30
EP  - 36
PB  - Science Publishing Group
SN  - 2994-7103
UR  - https://doi.org/10.11648/j.cm.20210502.11
AB  - The high dielectric constant and low dielectric loss are the most desirable characteristics of the dielectric materials. Considering the hazardous nature of lead-based ceramics, many research groups have paid great attention to the research on non-lead-based perovskites. The effect of the electric field on the electrical and thermal properties of the Lanthanum doped barium Titanate, one of the main important members of the ferroelectric Perovskites family is studied using the method of double time thermal Green’s function and Kubo formalism. With the help of the Silverman-Joseph Hamiltonian a general expression is derived. The electric field and temperature dependent dielectric constant and specific heat capacity of Ba1-xLaxTiO3 crystal has been investigated. The dielectric constant decreases with increase in temperature and applied electric field component. The variation shows a consequence of the gradual decrease in the Curie temperature of the doped material with the increase in defect concentrations. The results also compared with some previous studies done by the author and other workers on similar other materials.
VL  - 5
IS  - 2
ER  -

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Author Information

Dushyant Pradeep

Department of School Education, Govt. Boys Higher Sec. School Sunderbani, Govt. of Jammu and Kashmir, India
Jagdev Singh

Department of Irrigation (Punjab), Department of Physics, Lovely Professional University, Jalandhar, India

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APA Style

Dushyant Pradeep, Jagdev Singh. (2021). Dependence of Electrical and Thermal Properties on Applied Electric Field in La Doped Barium Titanate Displacive Ferroelectric Perovskites. Composite Materials, 5(2), 30-36. https://doi.org/10.11648/j.cm.20210502.11

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ACS Style

Dushyant Pradeep; Jagdev Singh. Dependence of Electrical and Thermal Properties on Applied Electric Field in La Doped Barium Titanate Displacive Ferroelectric Perovskites. Compos. Mater. 2021, 5(2), 30-36. doi: 10.11648/j.cm.20210502.11

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AMA Style

Dushyant Pradeep, Jagdev Singh. Dependence of Electrical and Thermal Properties on Applied Electric Field in La Doped Barium Titanate Displacive Ferroelectric Perovskites. Compos Mater. 2021;5(2):30-36. doi: 10.11648/j.cm.20210502.11

Copy | Download

@article{10.11648/j.cm.20210502.11,
  author = {Dushyant Pradeep and Jagdev Singh},
  title = {Dependence of Electrical and Thermal Properties on Applied Electric Field in La Doped Barium Titanate Displacive Ferroelectric Perovskites},
  journal = {Composite Materials},
  volume = {5},
  number = {2},
  pages = {30-36},
  doi = {10.11648/j.cm.20210502.11},
  url = {https://doi.org/10.11648/j.cm.20210502.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.cm.20210502.11},
  abstract = {The high dielectric constant and low dielectric loss are the most desirable characteristics of the dielectric materials. Considering the hazardous nature of lead-based ceramics, many research groups have paid great attention to the research on non-lead-based perovskites. The effect of the electric field on the electrical and thermal properties of the Lanthanum doped barium Titanate, one of the main important members of the ferroelectric Perovskites family is studied using the method of double time thermal Green’s function and Kubo formalism. With the help of the Silverman-Joseph Hamiltonian a general expression is derived. The electric field and temperature dependent dielectric constant and specific heat capacity of Ba1-xLaxTiO3 crystal has been investigated. The dielectric constant decreases with increase in temperature and applied electric field component. The variation shows a consequence of the gradual decrease in the Curie temperature of the doped material with the increase in defect concentrations. The results also compared with some previous studies done by the author and other workers on similar other materials.},
 year = {2021}
}

Copy | Download

TY  - JOUR
T1  - Dependence of Electrical and Thermal Properties on Applied Electric Field in La Doped Barium Titanate Displacive Ferroelectric Perovskites
AU  - Dushyant Pradeep
AU  - Jagdev Singh
Y1  - 2021/08/31
PY  - 2021
N1  - https://doi.org/10.11648/j.cm.20210502.11
DO  - 10.11648/j.cm.20210502.11
T2  - Composite Materials
JF  - Composite Materials
JO  - Composite Materials
SP  - 30
EP  - 36
PB  - Science Publishing Group
SN  - 2994-7103
UR  - https://doi.org/10.11648/j.cm.20210502.11
AB  - The high dielectric constant and low dielectric loss are the most desirable characteristics of the dielectric materials. Considering the hazardous nature of lead-based ceramics, many research groups have paid great attention to the research on non-lead-based perovskites. The effect of the electric field on the electrical and thermal properties of the Lanthanum doped barium Titanate, one of the main important members of the ferroelectric Perovskites family is studied using the method of double time thermal Green’s function and Kubo formalism. With the help of the Silverman-Joseph Hamiltonian a general expression is derived. The electric field and temperature dependent dielectric constant and specific heat capacity of Ba1-xLaxTiO3 crystal has been investigated. The dielectric constant decreases with increase in temperature and applied electric field component. The variation shows a consequence of the gradual decrease in the Curie temperature of the doped material with the increase in defect concentrations. The results also compared with some previous studies done by the author and other workers on similar other materials.
VL  - 5
IS  - 2
ER  -

Copy | Download