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primary topic: Electronic structure and multiferroic properties of (Y, Mn)-doped barium hexaferrite compounds

Electronic structure and multiferroic properties of (Y, Mn)-doped barium hexaferrite compounds
type: AcademicArticle
type: Article
abstract: We have systematically studied the crystal and electronic structures and the magnetic and electrical polarization properties of polycrystalline Ba0.95Y0.05Fe12−xMnxO19 (denoted as BaYFe12−xMnxO19) compounds with x = 0–2. The analyzes of X-ray diffraction patterns and Raman scattering spectra indicated their single phase in the M-type hexaferrite structure. With increasing x, the lattice constant a slightly increased while c decreased, which related to the Jahn-Teller effect. Though an increase of x reduced gradually magnetization in a range of 23–32 emu/g, the coercive force increased from 3.3 kOe for x = 0 to about 4 kOe for x = 0.5–2. The study of the electrical polarization properties proved the dependence of the shape of electric hysteresis loops on x and applied electric field. The samples with x = 0 and 0.5 exhibit a weak ferroelectricity with the maximum polarization of ~0.11 μC/cm2 for x = 0, and of ~0.06 μC/cm2 for x = 0.5. Meanwhile, the other samples showed nearly circular hysteresis loops, which are characteristic of conductive materials. Detailed investigations indicated an increase in leakage current when x increased. All of such phenomena are tightly related to the chemical shift of Mn2+ → Mn3+ and the replacement of Mn2+,3+ for Fe3+ in BaYFe12−xMnxO19. These oxidation states and the chemical shift of Mn have been confirmed upon analyzing X-ray absorption spectra
date: 2021-01-16
volume: 867
issue: 158794
is part of: Journal of Alloys and Compounds
status: peerReviewed
status: published
author list: authors
type: EPrint
type: ArticleEPrint
is part of: repository
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subject: Engineering Physics
subject: ISI-indexed journals

Electronic structure and multiferroic properties of (Y, Mn)-doped barium hexaferrite compounds (PDF)
type: Document

Elsevier B.V
type: Organization

Journal of Alloys and Compounds
type: Collection
issn: 09258388

Dang Co Nguyen
type: Person
given name: Dang Co
family name: Nguyen

Duc Thang Pham
type: Person
given name: Duc Thang
family name: Pham

Thi Anh Ho
type: Person
given name: Thi Anh
family name: Ho

Thi Minh Hong Nguyen
type: Person
given name: Thi Minh Hong
family name: Nguyen

Electronic structure and multiferroic properties of (Y, Mn)-doped barium hexaferrite compounds (Other)
type: Document
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Electronic structure and multiferroic properties of (Y, Mn)-doped barium hexaferrite compounds (Other)
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Electronic structure and multiferroic properties of (Y, Mn)-doped barium hexaferrite compounds (Other)
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Electronic structure and multiferroic properties of (Y, Mn)-doped barium hexaferrite compounds (Other)
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primary topic: Electronic structure and multiferroic properties of (Y, Mn)-doped barium hexaferrite compounds

Engineering Physics
type: Concept

ISI-indexed journals
type: Concept