Next Article in Journal
On the Use of Muscle Activation Patterns and Artificial Intelligence Methods for the Assessment of the Surgical Skills of Clinicians
Previous Article in Journal
Experimental Investigation on the Drilling Characteristics of Kenaf/PLA-Based Laminates
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Engineering Proceedings
Volume 55
Issue 1
10.3390/engproc2023055094
engproc-logo
Submit to this Journal
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Proceeding Paper

La3+-Induced Band-Gap Modifications in Barium Hexaferrite: An Investigation of the Structural, Optical, and Dielectric Properties †

by
Gowravi Subramanyam
,
Nishkala Kadambu Rao
and
Mamatha Durgadas Daivajna
*
Department of Physics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India
*
Author to whom correspondence should be addressed.
†
Presented at the IEEE 5th Eurasia Conference on Biomedical Engineering, Healthcare and Sustainability, Tainan, Taiwan, 2–4 June 2023.
Eng. Proc. 2023, 55(1), 94; https://doi.org/10.3390/engproc2023055094
Published: 29 January 2024
(This article belongs to the Proceedings of 2023 IEEE 5th Eurasia Conference on Biomedical Engineering, Healthcare and Sustainability)
Browse Figures
Versions Notes

Abstract

M-type barium hexaferrites, BaFe(12−x)LaxO19 (x = 0.0, 0.05, 0.1, 0.15, and 0.2), were prepared by a low-cost solid-state reaction method. The specimens crystallized in a non-centrosymmetric hexagonal magnetoplumbite structure that belonged to the P63/mmc space group. Morphologically, the samples were dense with hexagonal plate-like grains and size variations of around 1.19–1.70 μm. The optical band gap of the system was reduced in the wide band-gap region from 1.78 to 1.74 eV. The band-gap values would be useful in photocatalysis and photovoltaics. The AC conductivity was enhanced with La3+ substitution, following Jonscher’s power law. Maxwell–Wagner-type polarization was observed in the specimen, and tangent loss decreased with La3+ substitution. The values of the tangent loss were in the appropriate range for electromagnetic shielding applications.
Keywords: M-type hexaferrite; water splitting; dielectric properties; M–W-type relaxation M-type hexaferrite; water splitting; dielectric properties; M–W-type relaxation

Share and Cite

MDPI and ACS Style

Subramanyam, G.; Rao, N.K.; Daivajna, M.D. La3+-Induced Band-Gap Modifications in Barium Hexaferrite: An Investigation of the Structural, Optical, and Dielectric Properties. Eng. Proc. 2023, 55, 94. https://doi.org/10.3390/engproc2023055094

AMA Style

Subramanyam G, Rao NK, Daivajna MD. La3+-Induced Band-Gap Modifications in Barium Hexaferrite: An Investigation of the Structural, Optical, and Dielectric Properties. Engineering Proceedings. 2023; 55(1):94. https://doi.org/10.3390/engproc2023055094

Chicago/Turabian Style

Subramanyam, Gowravi, Nishkala Kadambu Rao, and Mamatha Durgadas Daivajna. 2023. "La3+-Induced Band-Gap Modifications in Barium Hexaferrite: An Investigation of the Structural, Optical, and Dielectric Properties" Engineering Proceedings 55, no. 1: 94. https://doi.org/10.3390/engproc2023055094

APA Style

Subramanyam, G., Rao, N. K., & Daivajna, M. D. (2023). La3+-Induced Band-Gap Modifications in Barium Hexaferrite: An Investigation of the Structural, Optical, and Dielectric Properties. Engineering Proceedings, 55(1), 94. https://doi.org/10.3390/engproc2023055094

Article Metrics

Back to TopTop