Dielectric and magnetodielectric properties of Bi0.95Tb0.05Fe0.95Co0.05O3 nanoparticles

A. Das; S. De; S. Bandyopadhyay; S. Chatterjee; D. Das

doi:10.1063/1.4980262

Dielectric and magnetodielectric properties of Bi_0.95Tb_0.05Fe_0.95Co_0.05O₃ nanoparticles

A. Das, S. De, S. Bandyopadhyay, S. Chatterjee, D. Das

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

Bi_0.95Tb_0.05Fe_0.95Co_0.05O₃ (BTFCO) nanoparticles (NPs) have been prepared using a chemical sol-gel method and characterized by x-ray diffraction (XRD), dielectric and magnetodielectric measurements. XRD pattern of the prepared sample shows all crystal planes of BiFeO₃ (BFO) confirming successful preparation of the desired NPs. Frequency dependent dielectric constant (ϵ_r) curves exhibit an enhancement of cr in the BTFCO NPs in comparison with the pristine BFO sample. Frequency dependent imaginary part of electric modulus curves exhibit a peak denoting presence of a relaxation process and activation energy obtained from Arrhenious fitting is found to be 0.34 eV. Variation of magnetocapacitance in presence of magnetic field is stronger in BTFCO in comparison with the pristine BFO and it is a signature of increased magnetoelectric effect in the doped BFO.

Original language	English
Title of host publication	DAE Solid State Physics Symposium 2016
Editors	Surendra Singh, Saibal Basu, Shovit Bhattacharya, Amitabh Das
Publisher	American Institute of Physics Inc.
ISBN (Electronic)	9780735415003
DOIs	https://doi.org/10.1063/1.4980262
State	Published - 19 May 2017
Externally published	Yes
Event	61st DAE Solid State Physics Symposium - Bhubaneswar, Odisha, India Duration: 26 Dec 2016 → 30 Dec 2016

Publication series

Name	AIP Conference Proceedings
Volume	1832
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	61st DAE Solid State Physics Symposium
Country/Territory	India
City	Bhubaneswar, Odisha
Period	26/12/16 → 30/12/16

Bibliographical note

Publisher Copyright:
© 2017 Author(s).

Keywords

Dielectric loss and relaxation
Multiferroics
Nanocrystalline materials
Reactions in sol gels

Access to Document

10.1063/1.4980262

Cite this

Das, A., De, S., Bandyopadhyay, S., Chatterjee, S., & Das, D. (2017). Dielectric and magnetodielectric properties of Bi_0.95Tb_0.05Fe_0.95Co_0.05O₃ nanoparticles. In S. Singh, S. Basu, S. Bhattacharya, & A. Das (Eds.), DAE Solid State Physics Symposium 2016 Article 050029 (AIP Conference Proceedings; Vol. 1832). American Institute of Physics Inc.. https://doi.org/10.1063/1.4980262

@inproceedings{905d0adb26ab4ec7aed7831473f0975e,

title = "Dielectric and magnetodielectric properties of Bi0.95Tb0.05Fe0.95Co0.05O3 nanoparticles",

abstract = "Bi0.95Tb0.05Fe0.95Co0.05O3 (BTFCO) nanoparticles (NPs) have been prepared using a chemical sol-gel method and characterized by x-ray diffraction (XRD), dielectric and magnetodielectric measurements. XRD pattern of the prepared sample shows all crystal planes of BiFeO3 (BFO) confirming successful preparation of the desired NPs. Frequency dependent dielectric constant (ϵr) curves exhibit an enhancement of cr in the BTFCO NPs in comparison with the pristine BFO sample. Frequency dependent imaginary part of electric modulus curves exhibit a peak denoting presence of a relaxation process and activation energy obtained from Arrhenious fitting is found to be 0.34 eV. Variation of magnetocapacitance in presence of magnetic field is stronger in BTFCO in comparison with the pristine BFO and it is a signature of increased magnetoelectric effect in the doped BFO.",

keywords = "Dielectric loss and relaxation, Multiferroics, Nanocrystalline materials, Reactions in sol gels",

author = "A. Das and S. De and S. Bandyopadhyay and S. Chatterjee and D. Das",

note = "Publisher Copyright: {\textcopyright} 2017 Author(s).; 61st DAE Solid State Physics Symposium ; Conference date: 26-12-2016 Through 30-12-2016",

year = "2017",

month = may,

day = "19",

doi = "10.1063/1.4980262",

language = "אנגלית",

series = "AIP Conference Proceedings",

publisher = "American Institute of Physics Inc.",

editor = "Surendra Singh and Saibal Basu and Shovit Bhattacharya and Amitabh Das",

booktitle = "DAE Solid State Physics Symposium 2016",

}

Das, A, De, S, Bandyopadhyay, S, Chatterjee, S & Das, D 2017, Dielectric and magnetodielectric properties of Bi_0.95Tb_0.05Fe_0.95Co_0.05O₃ nanoparticles. in S Singh, S Basu, S Bhattacharya & A Das (eds), DAE Solid State Physics Symposium 2016., 050029, AIP Conference Proceedings, vol. 1832, American Institute of Physics Inc., 61st DAE Solid State Physics Symposium, Bhubaneswar, Odisha, India, 26/12/16. https://doi.org/10.1063/1.4980262

Dielectric and magnetodielectric properties of Bi_0.95Tb_0.05Fe_0.95Co_0.05O₃ nanoparticles. / Das, A.; De, S.; Bandyopadhyay, S. et al.
DAE Solid State Physics Symposium 2016. ed. / Surendra Singh; Saibal Basu; Shovit Bhattacharya; Amitabh Das. American Institute of Physics Inc., 2017. 050029 (AIP Conference Proceedings; Vol. 1832).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Dielectric and magnetodielectric properties of Bi0.95Tb0.05Fe0.95Co0.05O3 nanoparticles

AU - Das, A.

AU - De, S.

AU - Bandyopadhyay, S.

AU - Chatterjee, S.

AU - Das, D.

PY - 2017/5/19

Y1 - 2017/5/19

N2 - Bi0.95Tb0.05Fe0.95Co0.05O3 (BTFCO) nanoparticles (NPs) have been prepared using a chemical sol-gel method and characterized by x-ray diffraction (XRD), dielectric and magnetodielectric measurements. XRD pattern of the prepared sample shows all crystal planes of BiFeO3 (BFO) confirming successful preparation of the desired NPs. Frequency dependent dielectric constant (ϵr) curves exhibit an enhancement of cr in the BTFCO NPs in comparison with the pristine BFO sample. Frequency dependent imaginary part of electric modulus curves exhibit a peak denoting presence of a relaxation process and activation energy obtained from Arrhenious fitting is found to be 0.34 eV. Variation of magnetocapacitance in presence of magnetic field is stronger in BTFCO in comparison with the pristine BFO and it is a signature of increased magnetoelectric effect in the doped BFO.

AB - Bi0.95Tb0.05Fe0.95Co0.05O3 (BTFCO) nanoparticles (NPs) have been prepared using a chemical sol-gel method and characterized by x-ray diffraction (XRD), dielectric and magnetodielectric measurements. XRD pattern of the prepared sample shows all crystal planes of BiFeO3 (BFO) confirming successful preparation of the desired NPs. Frequency dependent dielectric constant (ϵr) curves exhibit an enhancement of cr in the BTFCO NPs in comparison with the pristine BFO sample. Frequency dependent imaginary part of electric modulus curves exhibit a peak denoting presence of a relaxation process and activation energy obtained from Arrhenious fitting is found to be 0.34 eV. Variation of magnetocapacitance in presence of magnetic field is stronger in BTFCO in comparison with the pristine BFO and it is a signature of increased magnetoelectric effect in the doped BFO.

KW - Dielectric loss and relaxation

KW - Multiferroics

KW - Nanocrystalline materials

KW - Reactions in sol gels

UR - http://www.scopus.com/inward/record.url?scp=85020294992&partnerID=8YFLogxK

U2 - 10.1063/1.4980262

DO - 10.1063/1.4980262

M3 - ???researchoutput.researchoutputtypes.contributiontobookanthology.conference???

AN - SCOPUS:85020294992

T3 - AIP Conference Proceedings

BT - DAE Solid State Physics Symposium 2016

A2 - Singh, Surendra

A2 - Basu, Saibal

A2 - Bhattacharya, Shovit

A2 - Das, Amitabh

PB - American Institute of Physics Inc.

T2 - 61st DAE Solid State Physics Symposium

Y2 - 26 December 2016 through 30 December 2016

ER -