Conjuring of defect-induced short and long-range ferromagnetism ordering in Ba                         (1−x)                         Nd                         x                         Ti                         0.99                         Co                         0.01                         O                         3

K. Madhan; A. Paul Blessington Selvadurai; R. Murugaraj

doi:10.1016/j.matlet.2019.02.003

Conjuring of defect-induced short and long-range ferromagnetism ordering in Ba _(1−x) Nd _x Ti _0.99 Co _0.01 O ₃

K. Madhan
, A. Paul Blessington Selvadurai
, R. Murugaraj^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

In this letter, we report on the conjuring of defect-induced magnetism of Ba _(1−x) Nd _x Ti _0.99 Co _0.01 O ₃ , x = 0.00 (BTC), 0.25% (BNTC-1), 0.50% (BNTC-2)and 0.75% (BNTC-3) ferroelectric ceramics synthesized by sol-gel combustion method. XRD and Raman spectral analysis are exploited to emphasize the chemical homogeneity and structural sensitivity, which revealing an unpolluted phase with a structural transition of Tetragonal to Pseudo-cubic on Nd doping. Electron paramagnetic resonance (EPR) spectra have facilitated the aboriginal role of defects present in the samples through g factor of 1.997 and 1.968. A typical broad EPR signal with g-factor 2.413 for BNTC-1 ensures the ferromagnetic resonance (FMR) signal. It unveiled that the magnetic micro-domain state arises due to the existence of complex defects. Thus, inducing a magnetic saturation in M-H curve of BNTC-1 at high field strength, unlike the short-range ferromagnetism (FM) with diamagnetic ordering has observed in the other samples. These results indict that the short range and long range FM ordering ascribed to the crucial role of defects.

Original language	English
Pages (from-to)	100-103
Number of pages	4
Journal	Materials Letters
Volume	243
DOIs	https://doi.org/10.1016/j.matlet.2019.02.003
State	Published - 15 May 2019
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2019 Elsevier B.V.

Keywords

Defects
EPR spectra
Ferroelectrics
Magnetization
Raman spectra
Sol-gel processes

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.matlet.2019.02.003

Cite this

Madhan, K., Paul Blessington Selvadurai, A., & Murugaraj, R. (2019). Conjuring of defect-induced short and long-range ferromagnetism ordering in Ba _(1−x) Nd _x Ti _0.99 Co _0.01 O ₃ Materials Letters, 243, 100-103. https://doi.org/10.1016/j.matlet.2019.02.003

Madhan, K. ; Paul Blessington Selvadurai, A. ; Murugaraj, R. / Conjuring of defect-induced short and long-range ferromagnetism ordering in Ba _(1−x) Nd _x Ti _0.99 Co _0.01 O ₃ In: Materials Letters. 2019 ; Vol. 243. pp. 100-103.

@article{6acb9698948043cdb88b8a99d8e09db1,

title = " Conjuring of defect-induced short and long-range ferromagnetism ordering in Ba (1−x) Nd x Ti 0.99 Co 0.01 O 3 ",

abstract = " In this letter, we report on the conjuring of defect-induced magnetism of Ba (1−x) Nd x Ti 0.99 Co 0.01 O 3 , x = 0.00 (BTC), 0.25\% (BNTC-1), 0.50\% (BNTC-2)and 0.75\% (BNTC-3) ferroelectric ceramics synthesized by sol-gel combustion method. XRD and Raman spectral analysis are exploited to emphasize the chemical homogeneity and structural sensitivity, which revealing an unpolluted phase with a structural transition of Tetragonal to Pseudo-cubic on Nd doping. Electron paramagnetic resonance (EPR) spectra have facilitated the aboriginal role of defects present in the samples through g factor of 1.997 and 1.968. A typical broad EPR signal with g-factor 2.413 for BNTC-1 ensures the ferromagnetic resonance (FMR) signal. It unveiled that the magnetic micro-domain state arises due to the existence of complex defects. Thus, inducing a magnetic saturation in M-H curve of BNTC-1 at high field strength, unlike the short-range ferromagnetism (FM) with diamagnetic ordering has observed in the other samples. These results indict that the short range and long range FM ordering ascribed to the crucial role of defects.",

keywords = "Defects, EPR spectra, Ferroelectrics, Magnetization, Raman spectra, Sol-gel processes",

author = "K. Madhan and \{Paul Blessington Selvadurai\}, A. and R. Murugaraj",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = may,

day = "15",

doi = "10.1016/j.matlet.2019.02.003",

language = "English",

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Madhan, K, Paul Blessington Selvadurai, A & Murugaraj, R 2019, ' Conjuring of defect-induced short and long-range ferromagnetism ordering in Ba _(1−x) Nd _x Ti _0.99 Co _0.01 O ₃ ', Materials Letters, vol. 243, pp. 100-103. https://doi.org/10.1016/j.matlet.2019.02.003

Conjuring of defect-induced short and long-range ferromagnetism ordering in Ba _(1−x) Nd _x Ti _0.99 Co _0.01 O ₃ . / Madhan, K.; Paul Blessington Selvadurai, A.; Murugaraj, R.
In: Materials Letters, Vol. 243, 15.05.2019, p. 100-103.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Conjuring of defect-induced short and long-range ferromagnetism ordering in Ba (1−x) Nd x Ti 0.99 Co 0.01 O 3

AU - Madhan, K.

AU - Paul Blessington Selvadurai, A.

AU - Murugaraj, R.

PY - 2019/5/15

Y1 - 2019/5/15

N2 - In this letter, we report on the conjuring of defect-induced magnetism of Ba (1−x) Nd x Ti 0.99 Co 0.01 O 3 , x = 0.00 (BTC), 0.25% (BNTC-1), 0.50% (BNTC-2)and 0.75% (BNTC-3) ferroelectric ceramics synthesized by sol-gel combustion method. XRD and Raman spectral analysis are exploited to emphasize the chemical homogeneity and structural sensitivity, which revealing an unpolluted phase with a structural transition of Tetragonal to Pseudo-cubic on Nd doping. Electron paramagnetic resonance (EPR) spectra have facilitated the aboriginal role of defects present in the samples through g factor of 1.997 and 1.968. A typical broad EPR signal with g-factor 2.413 for BNTC-1 ensures the ferromagnetic resonance (FMR) signal. It unveiled that the magnetic micro-domain state arises due to the existence of complex defects. Thus, inducing a magnetic saturation in M-H curve of BNTC-1 at high field strength, unlike the short-range ferromagnetism (FM) with diamagnetic ordering has observed in the other samples. These results indict that the short range and long range FM ordering ascribed to the crucial role of defects.

AB - In this letter, we report on the conjuring of defect-induced magnetism of Ba (1−x) Nd x Ti 0.99 Co 0.01 O 3 , x = 0.00 (BTC), 0.25% (BNTC-1), 0.50% (BNTC-2)and 0.75% (BNTC-3) ferroelectric ceramics synthesized by sol-gel combustion method. XRD and Raman spectral analysis are exploited to emphasize the chemical homogeneity and structural sensitivity, which revealing an unpolluted phase with a structural transition of Tetragonal to Pseudo-cubic on Nd doping. Electron paramagnetic resonance (EPR) spectra have facilitated the aboriginal role of defects present in the samples through g factor of 1.997 and 1.968. A typical broad EPR signal with g-factor 2.413 for BNTC-1 ensures the ferromagnetic resonance (FMR) signal. It unveiled that the magnetic micro-domain state arises due to the existence of complex defects. Thus, inducing a magnetic saturation in M-H curve of BNTC-1 at high field strength, unlike the short-range ferromagnetism (FM) with diamagnetic ordering has observed in the other samples. These results indict that the short range and long range FM ordering ascribed to the crucial role of defects.

KW - Defects

KW - EPR spectra

KW - Ferroelectrics

KW - Magnetization

KW - Raman spectra

KW - Sol-gel processes

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U2 - 10.1016/j.matlet.2019.02.003

DO - 10.1016/j.matlet.2019.02.003

M3 - Article

AN - SCOPUS:85061544116

SN - 0167-577X

VL - 243

SP - 100

EP - 103

JO - Materials Letters

JF - Materials Letters

ER -

Madhan K, Paul Blessington Selvadurai A, Murugaraj R. Conjuring of defect-induced short and long-range ferromagnetism ordering in Ba _(1−x) Nd _x Ti _0.99 Co _0.01 O ₃ Materials Letters. 2019 May 15;243:100-103. doi: 10.1016/j.matlet.2019.02.003

Conjuring of defect-induced short and long-range ferromagnetism ordering in Ba (1−x) Nd x Ti 0.99 Co 0.01 O 3